/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 00:34:40,637 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 00:34:40,639 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 00:34:40,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 00:34:40,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 00:34:40,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 00:34:40,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 00:34:40,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 00:34:40,660 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 00:34:40,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 00:34:40,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 00:34:40,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 00:34:40,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 00:34:40,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 00:34:40,664 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 00:34:40,666 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 00:34:40,667 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 00:34:40,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 00:34:40,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 00:34:40,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 00:34:40,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 00:34:40,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 00:34:40,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 00:34:40,672 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 00:34:40,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-05 00:34:40,674 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-05 00:34:40,674 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-05 00:34:40,675 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-05 00:34:40,675 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-05 00:34:40,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-05 00:34:40,676 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-05 00:34:40,676 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-05 00:34:40,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-05 00:34:40,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-05 00:34:40,690 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-05 00:34:40,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-05 00:34:40,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-05 00:34:40,691 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-05 00:34:40,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 00:34:40,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 00:34:40,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 00:34:40,692 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-05 00:34:40,716 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 00:34:40,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 00:34:40,717 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 00:34:40,717 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 00:34:40,718 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 00:34:40,718 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 00:34:40,718 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 00:34:40,718 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 00:34:40,718 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 00:34:40,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 00:34:40,718 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 00:34:40,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 00:34:40,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 00:34:40,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 00:34:40,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 00:34:40,718 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 00:34:40,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 00:34:40,719 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 00:34:40,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 00:34:40,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 00:34:40,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 00:34:40,719 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 00:34:40,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 00:34:40,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 00:34:40,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 00:34:40,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 00:34:40,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 00:34:40,720 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 00:34:40,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 00:34:40,720 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 00:34:40,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 00:34:40,720 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 00:34:40,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 00:34:40,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 00:34:40,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 00:34:40,959 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 00:34:40,960 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 00:34:40,960 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2021-06-05 00:34:41,004 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2428bc1d0/89c0a6269eb9499185289e3225434569/FLAG7f4ed9241 [2021-06-05 00:34:41,474 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 00:34:41,474 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2021-06-05 00:34:41,494 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2428bc1d0/89c0a6269eb9499185289e3225434569/FLAG7f4ed9241 [2021-06-05 00:34:41,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2428bc1d0/89c0a6269eb9499185289e3225434569 [2021-06-05 00:34:41,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 00:34:41,788 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 00:34:41,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 00:34:41,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 00:34:41,792 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 00:34:41,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:34:41" (1/1) ... [2021-06-05 00:34:41,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25b01dc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:34:41, skipping insertion in model container [2021-06-05 00:34:41,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:34:41" (1/1) ... [2021-06-05 00:34:41,797 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 00:34:41,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 00:34:42,343 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i[76077,76090] [2021-06-05 00:34:42,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:34:42,373 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 00:34:42,411 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i[76077,76090] [2021-06-05 00:34:42,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:34:42,616 INFO L208 MainTranslator]: Completed translation [2021-06-05 00:34:42,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:34:42 WrapperNode [2021-06-05 00:34:42,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 00:34:42,617 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 00:34:42,617 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 00:34:42,617 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 00:34:42,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:34:42" (1/1) ... [2021-06-05 00:34:42,643 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:34:42" (1/1) ... [2021-06-05 00:34:42,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 00:34:42,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 00:34:42,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 00:34:42,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 00:34:42,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:34:42" (1/1) ... [2021-06-05 00:34:42,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:34:42" (1/1) ... [2021-06-05 00:34:42,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:34:42" (1/1) ... [2021-06-05 00:34:42,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:34:42" (1/1) ... [2021-06-05 00:34:42,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:34:42" (1/1) ... [2021-06-05 00:34:42,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:34:42" (1/1) ... [2021-06-05 00:34:42,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:34:42" (1/1) ... [2021-06-05 00:34:42,684 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 00:34:42,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 00:34:42,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 00:34:42,685 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 00:34:42,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:34:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 00:34:42,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 00:34:42,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-05 00:34:42,745 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-05 00:34:42,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-06-05 00:34:42,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 00:34:42,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 00:34:42,747 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-06-05 00:34:42,747 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-06-05 00:34:42,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 00:34:42,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 00:34:42,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 00:34:42,749 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 00:34:43,232 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 00:34:43,232 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-06-05 00:34:43,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:34:43 BoogieIcfgContainer [2021-06-05 00:34:43,233 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 00:34:43,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 00:34:43,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 00:34:43,237 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 00:34:43,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 12:34:41" (1/3) ... [2021-06-05 00:34:43,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea4ee01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:34:43, skipping insertion in model container [2021-06-05 00:34:43,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:34:42" (2/3) ... [2021-06-05 00:34:43,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea4ee01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:34:43, skipping insertion in model container [2021-06-05 00:34:43,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:34:43" (3/3) ... [2021-06-05 00:34:43,239 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2021-06-05 00:34:43,245 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 00:34:43,245 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 00:34:43,246 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-06-05 00:34:43,246 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 00:34:43,290 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,291 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,291 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,291 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,291 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,291 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,291 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,291 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,291 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,292 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,292 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,292 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,292 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,292 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,292 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,292 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,292 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,292 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,292 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,292 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,292 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,293 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,293 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,293 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,293 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,293 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,293 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,293 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,293 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,293 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,293 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,293 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,293 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,294 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,294 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,294 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,294 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,294 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,294 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,294 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,294 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,294 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,294 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,294 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,295 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,295 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,295 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,295 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,295 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,295 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,295 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,295 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,295 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,295 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,296 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,296 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,296 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,296 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,296 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,296 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,296 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,296 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,296 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,296 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,296 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,297 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,297 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,297 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,297 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,297 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,297 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,297 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,297 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,297 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,297 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,297 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,298 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,298 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,298 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,298 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,298 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,298 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,298 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,298 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,298 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,298 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,298 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,298 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,299 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,299 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,299 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,299 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,299 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,299 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,299 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,299 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,299 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,299 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,299 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,299 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,300 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,300 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,300 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,300 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,300 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,300 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,300 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,300 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,300 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,300 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,300 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,300 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,301 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,301 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,301 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,301 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,301 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,301 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,301 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,301 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,301 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,301 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,301 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,302 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,302 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,302 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,302 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,302 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,302 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,302 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,302 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,302 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,302 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,302 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,303 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,303 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,303 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,303 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,303 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,303 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,304 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,304 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,305 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,305 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,305 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,305 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,305 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,305 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,305 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,305 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,305 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,305 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,309 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,309 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,309 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,309 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,309 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,309 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,309 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,309 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,309 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,309 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,310 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,310 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,316 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-05 00:34:43,328 INFO L255 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-06-05 00:34:43,342 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 00:34:43,342 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 00:34:43,342 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 00:34:43,343 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 00:34:43,343 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 00:34:43,343 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 00:34:43,343 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 00:34:43,343 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 00:34:43,352 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 167 places, 171 transitions, 364 flow [2021-06-05 00:34:43,612 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9357 states, 9346 states have (on average 2.8477423496683074) internal successors, (26615), 9356 states have internal predecessors, (26615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:43,639 INFO L276 IsEmpty]: Start isEmpty. Operand has 9357 states, 9346 states have (on average 2.8477423496683074) internal successors, (26615), 9356 states have internal predecessors, (26615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:43,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-05 00:34:43,644 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:34:43,644 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:34:43,645 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:34:43,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:34:43,654 INFO L82 PathProgramCache]: Analyzing trace with hash 4312800, now seen corresponding path program 1 times [2021-06-05 00:34:43,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:34:43,660 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609491241] [2021-06-05 00:34:43,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:34:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:34:43,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:34:43,955 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:34:43,955 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609491241] [2021-06-05 00:34:43,956 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609491241] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:34:43,956 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:34:43,957 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:34:43,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942468722] [2021-06-05 00:34:43,960 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:34:43,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:34:43,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:34:43,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:34:43,990 INFO L87 Difference]: Start difference. First operand has 9357 states, 9346 states have (on average 2.8477423496683074) internal successors, (26615), 9356 states have internal predecessors, (26615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:44,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:34:44,214 INFO L93 Difference]: Finished difference Result 8904 states and 24865 transitions. [2021-06-05 00:34:44,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:34:44,215 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-06-05 00:34:44,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:34:44,255 INFO L225 Difference]: With dead ends: 8904 [2021-06-05 00:34:44,255 INFO L226 Difference]: Without dead ends: 7312 [2021-06-05 00:34:44,256 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 57.5ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:34:44,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7312 states. [2021-06-05 00:34:44,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7312 to 7311. [2021-06-05 00:34:44,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7311 states, 7304 states have (on average 2.7836801752464404) internal successors, (20332), 7310 states have internal predecessors, (20332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:44,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7311 states to 7311 states and 20332 transitions. [2021-06-05 00:34:44,483 INFO L78 Accepts]: Start accepts. Automaton has 7311 states and 20332 transitions. Word has length 36 [2021-06-05 00:34:44,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:34:44,483 INFO L482 AbstractCegarLoop]: Abstraction has 7311 states and 20332 transitions. [2021-06-05 00:34:44,484 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:44,484 INFO L276 IsEmpty]: Start isEmpty. Operand 7311 states and 20332 transitions. [2021-06-05 00:34:44,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-06-05 00:34:44,484 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:34:44,484 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:34:44,485 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 00:34:44,485 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:34:44,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:34:44,485 INFO L82 PathProgramCache]: Analyzing trace with hash -334882016, now seen corresponding path program 1 times [2021-06-05 00:34:44,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:34:44,486 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546314532] [2021-06-05 00:34:44,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:34:44,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:34:44,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:34:44,560 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:34:44,561 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546314532] [2021-06-05 00:34:44,561 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546314532] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:34:44,561 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:34:44,561 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:34:44,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298096626] [2021-06-05 00:34:44,562 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:34:44,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:34:44,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:34:44,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:34:44,563 INFO L87 Difference]: Start difference. First operand 7311 states and 20332 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:44,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:34:44,770 INFO L93 Difference]: Finished difference Result 7313 states and 20334 transitions. [2021-06-05 00:34:44,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 00:34:44,770 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-06-05 00:34:44,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:34:44,793 INFO L225 Difference]: With dead ends: 7313 [2021-06-05 00:34:44,793 INFO L226 Difference]: Without dead ends: 7313 [2021-06-05 00:34:44,794 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 102.8ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-05 00:34:44,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7313 states. [2021-06-05 00:34:44,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7313 to 7309. [2021-06-05 00:34:44,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7303 states have (on average 2.7837874845953716) internal successors, (20330), 7308 states have internal predecessors, (20330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:44,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 20330 transitions. [2021-06-05 00:34:44,947 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 20330 transitions. Word has length 42 [2021-06-05 00:34:44,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:34:44,948 INFO L482 AbstractCegarLoop]: Abstraction has 7309 states and 20330 transitions. [2021-06-05 00:34:44,949 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:44,949 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 20330 transitions. [2021-06-05 00:34:44,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 00:34:44,952 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:34:44,952 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:34:44,952 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 00:34:44,952 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:34:44,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:34:44,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1888111070, now seen corresponding path program 1 times [2021-06-05 00:34:44,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:34:44,959 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410845970] [2021-06-05 00:34:44,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:34:44,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:34:45,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:34:45,110 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:34:45,110 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410845970] [2021-06-05 00:34:45,110 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410845970] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:34:45,110 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:34:45,110 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:34:45,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088758165] [2021-06-05 00:34:45,111 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:34:45,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:34:45,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:34:45,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:34:45,114 INFO L87 Difference]: Start difference. First operand 7309 states and 20330 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:45,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:34:45,382 INFO L93 Difference]: Finished difference Result 10560 states and 29296 transitions. [2021-06-05 00:34:45,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 00:34:45,382 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-06-05 00:34:45,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:34:45,417 INFO L225 Difference]: With dead ends: 10560 [2021-06-05 00:34:45,417 INFO L226 Difference]: Without dead ends: 10560 [2021-06-05 00:34:45,418 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 127.9ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:34:45,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10560 states. [2021-06-05 00:34:45,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10560 to 8145. [2021-06-05 00:34:45,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8145 states, 8140 states have (on average 2.784029484029484) internal successors, (22662), 8144 states have internal predecessors, (22662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:45,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8145 states to 8145 states and 22662 transitions. [2021-06-05 00:34:45,660 INFO L78 Accepts]: Start accepts. Automaton has 8145 states and 22662 transitions. Word has length 60 [2021-06-05 00:34:45,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:34:45,663 INFO L482 AbstractCegarLoop]: Abstraction has 8145 states and 22662 transitions. [2021-06-05 00:34:45,663 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:45,663 INFO L276 IsEmpty]: Start isEmpty. Operand 8145 states and 22662 transitions. [2021-06-05 00:34:45,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-05 00:34:45,668 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:34:45,668 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:34:45,668 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 00:34:45,668 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:34:45,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:34:45,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1332255701, now seen corresponding path program 1 times [2021-06-05 00:34:45,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:34:45,669 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954647280] [2021-06-05 00:34:45,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:34:45,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:34:45,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:34:45,758 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:34:45,758 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954647280] [2021-06-05 00:34:45,758 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954647280] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:34:45,759 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:34:45,759 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:34:45,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648730221] [2021-06-05 00:34:45,760 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:34:45,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:34:45,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:34:45,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:34:45,763 INFO L87 Difference]: Start difference. First operand 8145 states and 22662 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:45,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:34:45,980 INFO L93 Difference]: Finished difference Result 11396 states and 31467 transitions. [2021-06-05 00:34:45,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 00:34:45,981 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-06-05 00:34:45,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:34:45,998 INFO L225 Difference]: With dead ends: 11396 [2021-06-05 00:34:45,998 INFO L226 Difference]: Without dead ends: 9607 [2021-06-05 00:34:45,998 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 61.8ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-06-05 00:34:46,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9607 states. [2021-06-05 00:34:46,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9607 to 9285. [2021-06-05 00:34:46,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9285 states, 9281 states have (on average 2.7852602090291994) internal successors, (25850), 9284 states have internal predecessors, (25850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:46,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9285 states to 9285 states and 25850 transitions. [2021-06-05 00:34:46,222 INFO L78 Accepts]: Start accepts. Automaton has 9285 states and 25850 transitions. Word has length 66 [2021-06-05 00:34:46,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:34:46,223 INFO L482 AbstractCegarLoop]: Abstraction has 9285 states and 25850 transitions. [2021-06-05 00:34:46,223 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:46,223 INFO L276 IsEmpty]: Start isEmpty. Operand 9285 states and 25850 transitions. [2021-06-05 00:34:46,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-05 00:34:46,230 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:34:46,230 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:34:46,230 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 00:34:46,230 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:34:46,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:34:46,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1121796277, now seen corresponding path program 1 times [2021-06-05 00:34:46,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:34:46,231 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155020076] [2021-06-05 00:34:46,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:34:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:34:46,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:34:46,305 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:34:46,305 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155020076] [2021-06-05 00:34:46,305 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155020076] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:34:46,305 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:34:46,305 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 00:34:46,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961857012] [2021-06-05 00:34:46,306 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 00:34:46,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:34:46,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 00:34:46,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 00:34:46,306 INFO L87 Difference]: Start difference. First operand 9285 states and 25850 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:46,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:34:46,337 INFO L93 Difference]: Finished difference Result 3460 states and 9340 transitions. [2021-06-05 00:34:46,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 00:34:46,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-06-05 00:34:46,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:34:46,345 INFO L225 Difference]: With dead ends: 3460 [2021-06-05 00:34:46,345 INFO L226 Difference]: Without dead ends: 3460 [2021-06-05 00:34:46,345 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 18.8ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-05 00:34:46,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3460 states. [2021-06-05 00:34:46,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3460 to 3460. [2021-06-05 00:34:46,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3460 states, 3458 states have (on average 2.700983227299017) internal successors, (9340), 3459 states have internal predecessors, (9340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:46,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3460 states to 3460 states and 9340 transitions. [2021-06-05 00:34:46,392 INFO L78 Accepts]: Start accepts. Automaton has 3460 states and 9340 transitions. Word has length 80 [2021-06-05 00:34:46,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:34:46,393 INFO L482 AbstractCegarLoop]: Abstraction has 3460 states and 9340 transitions. [2021-06-05 00:34:46,393 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:46,393 INFO L276 IsEmpty]: Start isEmpty. Operand 3460 states and 9340 transitions. [2021-06-05 00:34:46,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:34:46,398 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:34:46,398 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:34:46,398 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 00:34:46,398 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:34:46,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:34:46,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1343474486, now seen corresponding path program 1 times [2021-06-05 00:34:46,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:34:46,399 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302859149] [2021-06-05 00:34:46,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:34:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:34:46,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:34:46,943 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:34:46,943 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302859149] [2021-06-05 00:34:46,943 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302859149] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:34:46,943 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:34:46,943 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:34:46,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81323331] [2021-06-05 00:34:46,943 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:34:46,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:34:46,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:34:46,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:34:46,944 INFO L87 Difference]: Start difference. First operand 3460 states and 9340 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:47,764 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-06-05 00:34:47,945 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:34:48,130 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:34:48,369 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:34:48,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:34:48,543 INFO L93 Difference]: Finished difference Result 4246 states and 11446 transitions. [2021-06-05 00:34:48,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:34:48,544 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:34:48,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:34:48,550 INFO L225 Difference]: With dead ends: 4246 [2021-06-05 00:34:48,550 INFO L226 Difference]: Without dead ends: 4246 [2021-06-05 00:34:48,550 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1454.1ms TimeCoverageRelationStatistics Valid=292, Invalid=700, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:34:48,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4246 states. [2021-06-05 00:34:48,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4246 to 3964. [2021-06-05 00:34:48,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3964 states, 3962 states have (on average 2.708732963149924) internal successors, (10732), 3963 states have internal predecessors, (10732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:48,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3964 states to 3964 states and 10732 transitions. [2021-06-05 00:34:48,613 INFO L78 Accepts]: Start accepts. Automaton has 3964 states and 10732 transitions. Word has length 114 [2021-06-05 00:34:48,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:34:48,614 INFO L482 AbstractCegarLoop]: Abstraction has 3964 states and 10732 transitions. [2021-06-05 00:34:48,614 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:48,614 INFO L276 IsEmpty]: Start isEmpty. Operand 3964 states and 10732 transitions. [2021-06-05 00:34:48,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:34:48,621 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:34:48,621 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:34:48,621 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 00:34:48,621 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:34:48,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:34:48,621 INFO L82 PathProgramCache]: Analyzing trace with hash 637173482, now seen corresponding path program 2 times [2021-06-05 00:34:48,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:34:48,622 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231447495] [2021-06-05 00:34:48,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:34:48,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:34:49,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:34:49,083 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:34:49,083 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231447495] [2021-06-05 00:34:49,083 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231447495] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:34:49,083 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:34:49,083 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 00:34:49,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790039126] [2021-06-05 00:34:49,084 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 00:34:49,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:34:49,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 00:34:49,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:34:49,089 INFO L87 Difference]: Start difference. First operand 3964 states and 10732 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:50,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:34:50,291 INFO L93 Difference]: Finished difference Result 4833 states and 12790 transitions. [2021-06-05 00:34:50,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 00:34:50,292 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:34:50,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:34:50,299 INFO L225 Difference]: With dead ends: 4833 [2021-06-05 00:34:50,299 INFO L226 Difference]: Without dead ends: 4833 [2021-06-05 00:34:50,300 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1002.3ms TimeCoverageRelationStatistics Valid=329, Invalid=793, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 00:34:50,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4833 states. [2021-06-05 00:34:50,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4833 to 4524. [2021-06-05 00:34:50,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4524 states, 4522 states have (on average 2.680451127819549) internal successors, (12121), 4523 states have internal predecessors, (12121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:50,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 12121 transitions. [2021-06-05 00:34:50,373 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 12121 transitions. Word has length 114 [2021-06-05 00:34:50,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:34:50,373 INFO L482 AbstractCegarLoop]: Abstraction has 4524 states and 12121 transitions. [2021-06-05 00:34:50,373 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:50,373 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 12121 transitions. [2021-06-05 00:34:50,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:34:50,380 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:34:50,380 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:34:50,380 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 00:34:50,380 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:34:50,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:34:50,381 INFO L82 PathProgramCache]: Analyzing trace with hash -419622886, now seen corresponding path program 3 times [2021-06-05 00:34:50,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:34:50,381 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383980953] [2021-06-05 00:34:50,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:34:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:34:50,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:34:50,812 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:34:50,812 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383980953] [2021-06-05 00:34:50,812 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383980953] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:34:50,812 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:34:50,812 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 00:34:50,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487118127] [2021-06-05 00:34:50,813 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 00:34:50,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:34:50,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 00:34:50,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:34:50,814 INFO L87 Difference]: Start difference. First operand 4524 states and 12121 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:51,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:34:51,978 INFO L93 Difference]: Finished difference Result 5240 states and 13612 transitions. [2021-06-05 00:34:51,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 00:34:51,978 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:34:51,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:34:51,985 INFO L225 Difference]: With dead ends: 5240 [2021-06-05 00:34:51,985 INFO L226 Difference]: Without dead ends: 5240 [2021-06-05 00:34:51,985 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 988.1ms TimeCoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 00:34:51,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5240 states. [2021-06-05 00:34:52,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5240 to 4641. [2021-06-05 00:34:52,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4641 states, 4639 states have (on average 2.6704031041172667) internal successors, (12388), 4640 states have internal predecessors, (12388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:52,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4641 states to 4641 states and 12388 transitions. [2021-06-05 00:34:52,052 INFO L78 Accepts]: Start accepts. Automaton has 4641 states and 12388 transitions. Word has length 114 [2021-06-05 00:34:52,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:34:52,052 INFO L482 AbstractCegarLoop]: Abstraction has 4641 states and 12388 transitions. [2021-06-05 00:34:52,052 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:52,052 INFO L276 IsEmpty]: Start isEmpty. Operand 4641 states and 12388 transitions. [2021-06-05 00:34:52,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:34:52,059 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:34:52,059 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:34:52,059 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 00:34:52,059 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:34:52,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:34:52,059 INFO L82 PathProgramCache]: Analyzing trace with hash 2100918854, now seen corresponding path program 4 times [2021-06-05 00:34:52,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:34:52,060 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980960132] [2021-06-05 00:34:52,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:34:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:34:52,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:34:52,420 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:34:52,420 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980960132] [2021-06-05 00:34:52,420 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980960132] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:34:52,420 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:34:52,421 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 00:34:52,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535481204] [2021-06-05 00:34:52,421 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 00:34:52,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:34:52,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 00:34:52,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:34:52,422 INFO L87 Difference]: Start difference. First operand 4641 states and 12388 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:53,073 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2021-06-05 00:34:53,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:34:53,558 INFO L93 Difference]: Finished difference Result 5618 states and 14458 transitions. [2021-06-05 00:34:53,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 00:34:53,559 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:34:53,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:34:53,564 INFO L225 Difference]: With dead ends: 5618 [2021-06-05 00:34:53,564 INFO L226 Difference]: Without dead ends: 5618 [2021-06-05 00:34:53,565 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1026.0ms TimeCoverageRelationStatistics Valid=349, Invalid=911, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 00:34:53,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5618 states. [2021-06-05 00:34:53,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5618 to 4688. [2021-06-05 00:34:53,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4688 states, 4686 states have (on average 2.667733674775928) internal successors, (12501), 4687 states have internal predecessors, (12501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:53,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4688 states to 4688 states and 12501 transitions. [2021-06-05 00:34:53,627 INFO L78 Accepts]: Start accepts. Automaton has 4688 states and 12501 transitions. Word has length 114 [2021-06-05 00:34:53,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:34:53,627 INFO L482 AbstractCegarLoop]: Abstraction has 4688 states and 12501 transitions. [2021-06-05 00:34:53,627 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:53,627 INFO L276 IsEmpty]: Start isEmpty. Operand 4688 states and 12501 transitions. [2021-06-05 00:34:53,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:34:53,633 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:34:53,633 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:34:53,633 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 00:34:53,633 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:34:53,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:34:53,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1746124458, now seen corresponding path program 5 times [2021-06-05 00:34:53,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:34:53,634 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242284633] [2021-06-05 00:34:53,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:34:53,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:34:53,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:34:53,992 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:34:53,992 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242284633] [2021-06-05 00:34:53,992 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242284633] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:34:53,992 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:34:53,992 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 00:34:53,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70691018] [2021-06-05 00:34:53,993 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 00:34:53,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:34:53,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 00:34:53,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:34:53,993 INFO L87 Difference]: Start difference. First operand 4688 states and 12501 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:55,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:34:55,093 INFO L93 Difference]: Finished difference Result 5759 states and 14797 transitions. [2021-06-05 00:34:55,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 00:34:55,094 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:34:55,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:34:55,099 INFO L225 Difference]: With dead ends: 5759 [2021-06-05 00:34:55,099 INFO L226 Difference]: Without dead ends: 5759 [2021-06-05 00:34:55,100 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 929.4ms TimeCoverageRelationStatistics Valid=338, Invalid=922, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 00:34:55,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5759 states. [2021-06-05 00:34:55,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5759 to 4782. [2021-06-05 00:34:55,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4782 states, 4780 states have (on average 2.6625523012552303) internal successors, (12727), 4781 states have internal predecessors, (12727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:55,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4782 states to 4782 states and 12727 transitions. [2021-06-05 00:34:55,169 INFO L78 Accepts]: Start accepts. Automaton has 4782 states and 12727 transitions. Word has length 114 [2021-06-05 00:34:55,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:34:55,170 INFO L482 AbstractCegarLoop]: Abstraction has 4782 states and 12727 transitions. [2021-06-05 00:34:55,170 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:55,170 INFO L276 IsEmpty]: Start isEmpty. Operand 4782 states and 12727 transitions. [2021-06-05 00:34:55,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:34:55,176 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:34:55,176 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:34:55,176 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 00:34:55,176 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:34:55,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:34:55,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1513055446, now seen corresponding path program 6 times [2021-06-05 00:34:55,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:34:55,177 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171550043] [2021-06-05 00:34:55,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:34:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:34:55,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:34:55,560 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:34:55,560 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171550043] [2021-06-05 00:34:55,560 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171550043] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:34:55,560 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:34:55,560 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 00:34:55,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269964823] [2021-06-05 00:34:55,561 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 00:34:55,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:34:55,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 00:34:55,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:34:55,561 INFO L87 Difference]: Start difference. First operand 4782 states and 12727 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:56,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:34:56,588 INFO L93 Difference]: Finished difference Result 5900 states and 15136 transitions. [2021-06-05 00:34:56,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 00:34:56,588 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:34:56,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:34:56,594 INFO L225 Difference]: With dead ends: 5900 [2021-06-05 00:34:56,594 INFO L226 Difference]: Without dead ends: 5900 [2021-06-05 00:34:56,594 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 904.1ms TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 00:34:56,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5900 states. [2021-06-05 00:34:56,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5900 to 4829. [2021-06-05 00:34:56,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4829 states, 4827 states have (on average 2.6600372902423866) internal successors, (12840), 4828 states have internal predecessors, (12840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:56,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4829 states to 4829 states and 12840 transitions. [2021-06-05 00:34:56,659 INFO L78 Accepts]: Start accepts. Automaton has 4829 states and 12840 transitions. Word has length 114 [2021-06-05 00:34:56,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:34:56,659 INFO L482 AbstractCegarLoop]: Abstraction has 4829 states and 12840 transitions. [2021-06-05 00:34:56,659 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:56,659 INFO L276 IsEmpty]: Start isEmpty. Operand 4829 states and 12840 transitions. [2021-06-05 00:34:56,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:34:56,666 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:34:56,666 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:34:56,666 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 00:34:56,666 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:34:56,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:34:56,666 INFO L82 PathProgramCache]: Analyzing trace with hash 250954822, now seen corresponding path program 7 times [2021-06-05 00:34:56,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:34:56,667 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259771941] [2021-06-05 00:34:56,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:34:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:34:57,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:34:57,023 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:34:57,023 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259771941] [2021-06-05 00:34:57,023 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259771941] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:34:57,023 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:34:57,023 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 00:34:57,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206458475] [2021-06-05 00:34:57,024 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 00:34:57,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:34:57,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 00:34:57,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:34:57,024 INFO L87 Difference]: Start difference. First operand 4829 states and 12840 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:57,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:34:57,989 INFO L93 Difference]: Finished difference Result 5302 states and 13818 transitions. [2021-06-05 00:34:57,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 00:34:57,990 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:34:57,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:34:57,995 INFO L225 Difference]: With dead ends: 5302 [2021-06-05 00:34:57,995 INFO L226 Difference]: Without dead ends: 5302 [2021-06-05 00:34:57,995 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 858.4ms TimeCoverageRelationStatistics Valid=316, Invalid=944, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 00:34:58,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2021-06-05 00:34:58,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 4524. [2021-06-05 00:34:58,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4524 states, 4522 states have (on average 2.680451127819549) internal successors, (12121), 4523 states have internal predecessors, (12121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:58,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 12121 transitions. [2021-06-05 00:34:58,070 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 12121 transitions. Word has length 114 [2021-06-05 00:34:58,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:34:58,070 INFO L482 AbstractCegarLoop]: Abstraction has 4524 states and 12121 transitions. [2021-06-05 00:34:58,070 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:58,070 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 12121 transitions. [2021-06-05 00:34:58,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:34:58,078 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:34:58,079 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:34:58,079 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 00:34:58,079 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:34:58,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:34:58,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1970428110, now seen corresponding path program 8 times [2021-06-05 00:34:58,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:34:58,079 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848922592] [2021-06-05 00:34:58,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:34:58,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:34:58,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:34:58,475 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:34:58,475 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848922592] [2021-06-05 00:34:58,475 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848922592] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:34:58,475 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:34:58,475 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:34:58,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992945218] [2021-06-05 00:34:58,475 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:34:58,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:34:58,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:34:58,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:34:58,476 INFO L87 Difference]: Start difference. First operand 4524 states and 12121 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:59,206 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:34:59,356 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:34:59,536 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:34:59,744 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:34:59,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:34:59,865 INFO L93 Difference]: Finished difference Result 8731 states and 23481 transitions. [2021-06-05 00:34:59,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:34:59,865 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:34:59,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:34:59,873 INFO L225 Difference]: With dead ends: 8731 [2021-06-05 00:34:59,873 INFO L226 Difference]: Without dead ends: 8731 [2021-06-05 00:34:59,873 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1295.9ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:34:59,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8731 states. [2021-06-05 00:34:59,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8731 to 4580. [2021-06-05 00:34:59,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4580 states, 4578 states have (on average 2.68348623853211) internal successors, (12285), 4579 states have internal predecessors, (12285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:59,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4580 states to 4580 states and 12285 transitions. [2021-06-05 00:34:59,946 INFO L78 Accepts]: Start accepts. Automaton has 4580 states and 12285 transitions. Word has length 114 [2021-06-05 00:34:59,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:34:59,947 INFO L482 AbstractCegarLoop]: Abstraction has 4580 states and 12285 transitions. [2021-06-05 00:34:59,947 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:59,947 INFO L276 IsEmpty]: Start isEmpty. Operand 4580 states and 12285 transitions. [2021-06-05 00:34:59,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:34:59,952 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:34:59,952 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:34:59,952 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-05 00:34:59,953 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:34:59,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:34:59,953 INFO L82 PathProgramCache]: Analyzing trace with hash -411302450, now seen corresponding path program 9 times [2021-06-05 00:34:59,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:34:59,953 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587524377] [2021-06-05 00:34:59,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:34:59,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:00,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:00,355 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:00,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587524377] [2021-06-05 00:35:00,355 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587524377] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:00,355 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:00,355 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:00,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314339764] [2021-06-05 00:35:00,355 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:00,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:00,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:00,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:00,356 INFO L87 Difference]: Start difference. First operand 4580 states and 12285 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:01,000 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-06-05 00:35:01,147 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:35:01,327 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:35:01,574 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:35:01,778 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:35:01,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:01,911 INFO L93 Difference]: Finished difference Result 8479 states and 22743 transitions. [2021-06-05 00:35:01,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:01,918 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:01,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:01,929 INFO L225 Difference]: With dead ends: 8479 [2021-06-05 00:35:01,929 INFO L226 Difference]: Without dead ends: 8479 [2021-06-05 00:35:01,930 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1474.4ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:01,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8479 states. [2021-06-05 00:35:02,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8479 to 4594. [2021-06-05 00:35:02,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4594 states, 4592 states have (on average 2.684233449477352) internal successors, (12326), 4593 states have internal predecessors, (12326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:02,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4594 states to 4594 states and 12326 transitions. [2021-06-05 00:35:02,014 INFO L78 Accepts]: Start accepts. Automaton has 4594 states and 12326 transitions. Word has length 114 [2021-06-05 00:35:02,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:02,014 INFO L482 AbstractCegarLoop]: Abstraction has 4594 states and 12326 transitions. [2021-06-05 00:35:02,015 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:02,015 INFO L276 IsEmpty]: Start isEmpty. Operand 4594 states and 12326 transitions. [2021-06-05 00:35:02,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:02,019 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:02,019 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:02,020 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 00:35:02,020 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:02,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:02,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1724172172, now seen corresponding path program 10 times [2021-06-05 00:35:02,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:02,020 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386430233] [2021-06-05 00:35:02,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:02,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:02,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:02,463 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:02,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386430233] [2021-06-05 00:35:02,463 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386430233] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:02,463 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:02,463 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:02,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267861932] [2021-06-05 00:35:02,464 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:02,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:02,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:02,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:02,464 INFO L87 Difference]: Start difference. First operand 4594 states and 12326 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:03,173 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:35:03,329 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:35:03,501 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:35:03,676 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:35:03,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:03,785 INFO L93 Difference]: Finished difference Result 7977 states and 21077 transitions. [2021-06-05 00:35:03,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:03,786 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:03,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:03,792 INFO L225 Difference]: With dead ends: 7977 [2021-06-05 00:35:03,792 INFO L226 Difference]: Without dead ends: 7977 [2021-06-05 00:35:03,793 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1287.4ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:03,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7977 states. [2021-06-05 00:35:03,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7977 to 4692. [2021-06-05 00:35:03,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4692 states, 4690 states have (on average 2.6714285714285713) internal successors, (12529), 4691 states have internal predecessors, (12529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:03,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4692 states to 4692 states and 12529 transitions. [2021-06-05 00:35:03,872 INFO L78 Accepts]: Start accepts. Automaton has 4692 states and 12529 transitions. Word has length 114 [2021-06-05 00:35:03,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:03,872 INFO L482 AbstractCegarLoop]: Abstraction has 4692 states and 12529 transitions. [2021-06-05 00:35:03,872 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:03,872 INFO L276 IsEmpty]: Start isEmpty. Operand 4692 states and 12529 transitions. [2021-06-05 00:35:03,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:03,878 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:03,878 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:03,878 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-05 00:35:03,878 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:03,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:03,879 INFO L82 PathProgramCache]: Analyzing trace with hash -9117170, now seen corresponding path program 11 times [2021-06-05 00:35:03,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:03,879 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886606682] [2021-06-05 00:35:03,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:04,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:04,282 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:04,282 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886606682] [2021-06-05 00:35:04,282 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886606682] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:04,282 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:04,282 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 00:35:04,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834613109] [2021-06-05 00:35:04,283 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 00:35:04,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:04,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 00:35:04,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:35:04,283 INFO L87 Difference]: Start difference. First operand 4692 states and 12529 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:05,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:05,343 INFO L93 Difference]: Finished difference Result 6412 states and 16826 transitions. [2021-06-05 00:35:05,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 00:35:05,343 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:05,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:05,349 INFO L225 Difference]: With dead ends: 6412 [2021-06-05 00:35:05,349 INFO L226 Difference]: Without dead ends: 6412 [2021-06-05 00:35:05,350 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 898.2ms TimeCoverageRelationStatistics Valid=329, Invalid=793, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 00:35:05,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6412 states. [2021-06-05 00:35:05,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6412 to 4842. [2021-06-05 00:35:05,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4842 states, 4840 states have (on average 2.671694214876033) internal successors, (12931), 4841 states have internal predecessors, (12931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:05,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4842 states to 4842 states and 12931 transitions. [2021-06-05 00:35:05,404 INFO L78 Accepts]: Start accepts. Automaton has 4842 states and 12931 transitions. Word has length 114 [2021-06-05 00:35:05,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:05,404 INFO L482 AbstractCegarLoop]: Abstraction has 4842 states and 12931 transitions. [2021-06-05 00:35:05,404 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:05,404 INFO L276 IsEmpty]: Start isEmpty. Operand 4842 states and 12931 transitions. [2021-06-05 00:35:05,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:05,410 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:05,410 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:05,411 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-05 00:35:05,411 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:05,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:05,411 INFO L82 PathProgramCache]: Analyzing trace with hash -319151462, now seen corresponding path program 1 times [2021-06-05 00:35:05,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:05,411 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986441957] [2021-06-05 00:35:05,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:05,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:05,802 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:05,802 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986441957] [2021-06-05 00:35:05,802 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986441957] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:05,802 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:05,802 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 00:35:05,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696196984] [2021-06-05 00:35:05,803 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 00:35:05,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:05,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 00:35:05,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:35:05,804 INFO L87 Difference]: Start difference. First operand 4842 states and 12931 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:07,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:07,249 INFO L93 Difference]: Finished difference Result 5010 states and 13247 transitions. [2021-06-05 00:35:07,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 00:35:07,250 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:07,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:07,254 INFO L225 Difference]: With dead ends: 5010 [2021-06-05 00:35:07,254 INFO L226 Difference]: Without dead ends: 5010 [2021-06-05 00:35:07,255 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 1101.8ms TimeCoverageRelationStatistics Valid=534, Invalid=1536, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:35:07,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5010 states. [2021-06-05 00:35:07,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5010 to 4966. [2021-06-05 00:35:07,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4966 states, 4964 states have (on average 2.6516921837228042) internal successors, (13163), 4965 states have internal predecessors, (13163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:07,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4966 states to 4966 states and 13163 transitions. [2021-06-05 00:35:07,310 INFO L78 Accepts]: Start accepts. Automaton has 4966 states and 13163 transitions. Word has length 114 [2021-06-05 00:35:07,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:07,310 INFO L482 AbstractCegarLoop]: Abstraction has 4966 states and 13163 transitions. [2021-06-05 00:35:07,310 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:07,310 INFO L276 IsEmpty]: Start isEmpty. Operand 4966 states and 13163 transitions. [2021-06-05 00:35:07,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:07,316 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:07,316 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:07,316 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-05 00:35:07,316 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:07,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:07,316 INFO L82 PathProgramCache]: Analyzing trace with hash 884172954, now seen corresponding path program 12 times [2021-06-05 00:35:07,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:07,316 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19189549] [2021-06-05 00:35:07,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:07,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:07,664 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:07,664 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19189549] [2021-06-05 00:35:07,664 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19189549] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:07,664 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:07,664 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 00:35:07,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975456042] [2021-06-05 00:35:07,664 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 00:35:07,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:07,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 00:35:07,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:35:07,665 INFO L87 Difference]: Start difference. First operand 4966 states and 13163 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:08,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:08,753 INFO L93 Difference]: Finished difference Result 7199 states and 18344 transitions. [2021-06-05 00:35:08,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 00:35:08,754 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:08,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:08,760 INFO L225 Difference]: With dead ends: 7199 [2021-06-05 00:35:08,760 INFO L226 Difference]: Without dead ends: 7199 [2021-06-05 00:35:08,761 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 948.1ms TimeCoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 00:35:08,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7199 states. [2021-06-05 00:35:08,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7199 to 5066. [2021-06-05 00:35:08,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5066 states, 5064 states have (on average 2.646129541864139) internal successors, (13400), 5065 states have internal predecessors, (13400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:08,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5066 states to 5066 states and 13400 transitions. [2021-06-05 00:35:08,823 INFO L78 Accepts]: Start accepts. Automaton has 5066 states and 13400 transitions. Word has length 114 [2021-06-05 00:35:08,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:08,823 INFO L482 AbstractCegarLoop]: Abstraction has 5066 states and 13400 transitions. [2021-06-05 00:35:08,823 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:08,823 INFO L276 IsEmpty]: Start isEmpty. Operand 5066 states and 13400 transitions. [2021-06-05 00:35:08,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:08,827 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:08,827 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:08,827 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-05 00:35:08,827 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:08,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:08,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1591610796, now seen corresponding path program 13 times [2021-06-05 00:35:08,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:08,828 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711476505] [2021-06-05 00:35:08,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:08,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:09,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:09,208 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:09,208 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711476505] [2021-06-05 00:35:09,208 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711476505] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:09,208 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:09,208 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:09,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094216318] [2021-06-05 00:35:09,209 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:09,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:09,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:09,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:09,210 INFO L87 Difference]: Start difference. First operand 5066 states and 13400 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:10,097 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:35:10,292 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:35:10,500 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:35:10,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:10,609 INFO L93 Difference]: Finished difference Result 9064 states and 23840 transitions. [2021-06-05 00:35:10,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:10,609 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:10,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:10,616 INFO L225 Difference]: With dead ends: 9064 [2021-06-05 00:35:10,616 INFO L226 Difference]: Without dead ends: 9064 [2021-06-05 00:35:10,616 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1340.6ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:10,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9064 states. [2021-06-05 00:35:10,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9064 to 5066. [2021-06-05 00:35:10,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5066 states, 5064 states have (on average 2.646129541864139) internal successors, (13400), 5065 states have internal predecessors, (13400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:10,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5066 states to 5066 states and 13400 transitions. [2021-06-05 00:35:10,687 INFO L78 Accepts]: Start accepts. Automaton has 5066 states and 13400 transitions. Word has length 114 [2021-06-05 00:35:10,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:10,687 INFO L482 AbstractCegarLoop]: Abstraction has 5066 states and 13400 transitions. [2021-06-05 00:35:10,687 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:10,687 INFO L276 IsEmpty]: Start isEmpty. Operand 5066 states and 13400 transitions. [2021-06-05 00:35:10,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:10,691 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:10,691 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:10,691 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-05 00:35:10,691 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:10,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:10,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1931855154, now seen corresponding path program 14 times [2021-06-05 00:35:10,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:10,692 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96866858] [2021-06-05 00:35:10,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:10,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:11,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:11,067 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:11,067 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96866858] [2021-06-05 00:35:11,067 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96866858] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:11,067 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:11,067 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:11,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973154135] [2021-06-05 00:35:11,067 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:11,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:11,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:11,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:11,068 INFO L87 Difference]: Start difference. First operand 5066 states and 13400 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:11,919 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:35:12,098 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:35:12,298 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:35:12,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:12,402 INFO L93 Difference]: Finished difference Result 7143 states and 18710 transitions. [2021-06-05 00:35:12,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:12,403 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:12,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:12,408 INFO L225 Difference]: With dead ends: 7143 [2021-06-05 00:35:12,408 INFO L226 Difference]: Without dead ends: 7143 [2021-06-05 00:35:12,409 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1275.1ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:12,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7143 states. [2021-06-05 00:35:12,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7143 to 5066. [2021-06-05 00:35:12,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5066 states, 5064 states have (on average 2.646129541864139) internal successors, (13400), 5065 states have internal predecessors, (13400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:12,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5066 states to 5066 states and 13400 transitions. [2021-06-05 00:35:12,466 INFO L78 Accepts]: Start accepts. Automaton has 5066 states and 13400 transitions. Word has length 114 [2021-06-05 00:35:12,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:12,466 INFO L482 AbstractCegarLoop]: Abstraction has 5066 states and 13400 transitions. [2021-06-05 00:35:12,466 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:12,467 INFO L276 IsEmpty]: Start isEmpty. Operand 5066 states and 13400 transitions. [2021-06-05 00:35:12,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:12,470 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:12,470 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:12,470 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-05 00:35:12,470 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:12,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:12,471 INFO L82 PathProgramCache]: Analyzing trace with hash -2115845364, now seen corresponding path program 15 times [2021-06-05 00:35:12,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:12,471 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943908949] [2021-06-05 00:35:12,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:12,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:12,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:12,784 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:12,784 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943908949] [2021-06-05 00:35:12,784 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943908949] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:12,784 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:12,784 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:12,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450862527] [2021-06-05 00:35:12,784 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:12,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:12,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:12,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:12,786 INFO L87 Difference]: Start difference. First operand 5066 states and 13400 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:13,526 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:35:13,680 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:35:13,852 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:35:14,044 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:35:14,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:14,175 INFO L93 Difference]: Finished difference Result 11856 states and 31073 transitions. [2021-06-05 00:35:14,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:14,175 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:14,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:14,185 INFO L225 Difference]: With dead ends: 11856 [2021-06-05 00:35:14,185 INFO L226 Difference]: Without dead ends: 11856 [2021-06-05 00:35:14,185 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1241.0ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:14,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11856 states. [2021-06-05 00:35:14,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11856 to 5154. [2021-06-05 00:35:14,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5154 states, 5152 states have (on average 2.650621118012422) internal successors, (13656), 5153 states have internal predecessors, (13656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:14,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5154 states to 5154 states and 13656 transitions. [2021-06-05 00:35:14,264 INFO L78 Accepts]: Start accepts. Automaton has 5154 states and 13656 transitions. Word has length 114 [2021-06-05 00:35:14,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:14,264 INFO L482 AbstractCegarLoop]: Abstraction has 5154 states and 13656 transitions. [2021-06-05 00:35:14,264 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:14,264 INFO L276 IsEmpty]: Start isEmpty. Operand 5154 states and 13656 transitions. [2021-06-05 00:35:14,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:14,268 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:14,268 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:14,268 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-05 00:35:14,268 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:14,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:14,269 INFO L82 PathProgramCache]: Analyzing trace with hash -202608628, now seen corresponding path program 16 times [2021-06-05 00:35:14,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:14,269 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075875213] [2021-06-05 00:35:14,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:14,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:14,596 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:14,596 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075875213] [2021-06-05 00:35:14,596 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075875213] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:14,596 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:14,596 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:14,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352413019] [2021-06-05 00:35:14,596 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:14,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:14,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:14,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:14,598 INFO L87 Difference]: Start difference. First operand 5154 states and 13656 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:15,306 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:35:15,467 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:35:15,629 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:35:15,814 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:35:15,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:15,967 INFO L93 Difference]: Finished difference Result 14480 states and 37796 transitions. [2021-06-05 00:35:15,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:15,967 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:15,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:15,977 INFO L225 Difference]: With dead ends: 14480 [2021-06-05 00:35:15,977 INFO L226 Difference]: Without dead ends: 14480 [2021-06-05 00:35:15,977 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1254.9ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:15,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14480 states. [2021-06-05 00:35:16,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14480 to 5170. [2021-06-05 00:35:16,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5170 states, 5168 states have (on average 2.651315789473684) internal successors, (13702), 5169 states have internal predecessors, (13702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:16,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5170 states to 5170 states and 13702 transitions. [2021-06-05 00:35:16,057 INFO L78 Accepts]: Start accepts. Automaton has 5170 states and 13702 transitions. Word has length 114 [2021-06-05 00:35:16,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:16,057 INFO L482 AbstractCegarLoop]: Abstraction has 5170 states and 13702 transitions. [2021-06-05 00:35:16,057 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:16,057 INFO L276 IsEmpty]: Start isEmpty. Operand 5170 states and 13702 transitions. [2021-06-05 00:35:16,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:16,061 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:16,061 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:16,061 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-05 00:35:16,061 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:16,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:16,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1932865994, now seen corresponding path program 17 times [2021-06-05 00:35:16,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:16,061 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836499544] [2021-06-05 00:35:16,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:16,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:16,405 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:16,405 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836499544] [2021-06-05 00:35:16,405 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836499544] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:16,405 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:16,405 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:16,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130496355] [2021-06-05 00:35:16,406 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:16,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:16,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:16,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:16,406 INFO L87 Difference]: Start difference. First operand 5170 states and 13702 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:17,002 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-06-05 00:35:17,135 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:35:17,292 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:35:17,468 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:35:17,646 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:35:17,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:17,767 INFO L93 Difference]: Finished difference Result 12760 states and 33084 transitions. [2021-06-05 00:35:17,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:17,768 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:17,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:17,779 INFO L225 Difference]: With dead ends: 12760 [2021-06-05 00:35:17,779 INFO L226 Difference]: Without dead ends: 12760 [2021-06-05 00:35:17,780 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1304.0ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:17,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12760 states. [2021-06-05 00:35:17,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12760 to 5142. [2021-06-05 00:35:17,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5142 states, 5140 states have (on average 2.646303501945525) internal successors, (13602), 5141 states have internal predecessors, (13602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:17,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5142 states to 5142 states and 13602 transitions. [2021-06-05 00:35:17,863 INFO L78 Accepts]: Start accepts. Automaton has 5142 states and 13602 transitions. Word has length 114 [2021-06-05 00:35:17,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:17,863 INFO L482 AbstractCegarLoop]: Abstraction has 5142 states and 13602 transitions. [2021-06-05 00:35:17,864 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:17,864 INFO L276 IsEmpty]: Start isEmpty. Operand 5142 states and 13602 transitions. [2021-06-05 00:35:17,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:17,867 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:17,868 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:17,868 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-05 00:35:17,868 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:17,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:17,868 INFO L82 PathProgramCache]: Analyzing trace with hash 119137996, now seen corresponding path program 18 times [2021-06-05 00:35:17,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:17,868 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846490738] [2021-06-05 00:35:17,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:17,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:18,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:18,174 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:18,174 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846490738] [2021-06-05 00:35:18,174 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846490738] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:18,174 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:18,174 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:18,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591662808] [2021-06-05 00:35:18,175 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:18,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:18,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:18,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:18,175 INFO L87 Difference]: Start difference. First operand 5142 states and 13602 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:18,757 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-06-05 00:35:18,914 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:35:19,067 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:35:19,238 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:35:19,427 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:35:19,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:19,551 INFO L93 Difference]: Finished difference Result 11468 states and 29977 transitions. [2021-06-05 00:35:19,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:19,551 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:19,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:19,562 INFO L225 Difference]: With dead ends: 11468 [2021-06-05 00:35:19,562 INFO L226 Difference]: Without dead ends: 11468 [2021-06-05 00:35:19,562 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1256.3ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:19,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11468 states. [2021-06-05 00:35:19,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11468 to 5172. [2021-06-05 00:35:19,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5172 states, 5170 states have (on average 2.6477756286266922) internal successors, (13689), 5171 states have internal predecessors, (13689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:19,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5172 states to 5172 states and 13689 transitions. [2021-06-05 00:35:19,638 INFO L78 Accepts]: Start accepts. Automaton has 5172 states and 13689 transitions. Word has length 114 [2021-06-05 00:35:19,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:19,638 INFO L482 AbstractCegarLoop]: Abstraction has 5172 states and 13689 transitions. [2021-06-05 00:35:19,638 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:19,638 INFO L276 IsEmpty]: Start isEmpty. Operand 5172 states and 13689 transitions. [2021-06-05 00:35:19,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:19,642 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:19,642 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:19,642 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-05 00:35:19,642 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:19,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:19,642 INFO L82 PathProgramCache]: Analyzing trace with hash -2040354678, now seen corresponding path program 19 times [2021-06-05 00:35:19,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:19,642 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531373147] [2021-06-05 00:35:19,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:19,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:19,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:19,946 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:19,946 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531373147] [2021-06-05 00:35:19,946 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531373147] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:19,946 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:19,946 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:19,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851308446] [2021-06-05 00:35:19,947 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:19,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:19,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:19,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:19,947 INFO L87 Difference]: Start difference. First operand 5172 states and 13689 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:20,657 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:35:20,801 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:35:20,989 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:35:21,168 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:35:21,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:21,304 INFO L93 Difference]: Finished difference Result 12314 states and 31837 transitions. [2021-06-05 00:35:21,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:21,304 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:21,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:21,315 INFO L225 Difference]: With dead ends: 12314 [2021-06-05 00:35:21,315 INFO L226 Difference]: Without dead ends: 12314 [2021-06-05 00:35:21,316 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1233.8ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:21,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12314 states. [2021-06-05 00:35:21,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12314 to 5156. [2021-06-05 00:35:21,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5156 states, 5154 states have (on average 2.647070236709352) internal successors, (13643), 5155 states have internal predecessors, (13643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:21,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5156 states to 5156 states and 13643 transitions. [2021-06-05 00:35:21,397 INFO L78 Accepts]: Start accepts. Automaton has 5156 states and 13643 transitions. Word has length 114 [2021-06-05 00:35:21,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:21,397 INFO L482 AbstractCegarLoop]: Abstraction has 5156 states and 13643 transitions. [2021-06-05 00:35:21,397 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:21,397 INFO L276 IsEmpty]: Start isEmpty. Operand 5156 states and 13643 transitions. [2021-06-05 00:35:21,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:21,401 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:21,401 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:21,401 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-05 00:35:21,401 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:21,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:21,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1242491218, now seen corresponding path program 20 times [2021-06-05 00:35:21,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:21,402 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489526922] [2021-06-05 00:35:21,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:21,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:21,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:21,750 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:21,750 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489526922] [2021-06-05 00:35:21,750 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489526922] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:21,750 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:21,750 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:21,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608561143] [2021-06-05 00:35:21,751 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:21,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:21,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:21,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:21,751 INFO L87 Difference]: Start difference. First operand 5156 states and 13643 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:22,494 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:35:22,644 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:35:22,817 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:35:23,020 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:35:23,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:23,146 INFO L93 Difference]: Finished difference Result 11614 states and 30208 transitions. [2021-06-05 00:35:23,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:23,146 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:23,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:23,157 INFO L225 Difference]: With dead ends: 11614 [2021-06-05 00:35:23,157 INFO L226 Difference]: Without dead ends: 11614 [2021-06-05 00:35:23,157 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1290.9ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:23,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11614 states. [2021-06-05 00:35:23,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11614 to 5170. [2021-06-05 00:35:23,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5170 states, 5168 states have (on average 2.6478328173374615) internal successors, (13684), 5169 states have internal predecessors, (13684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:23,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5170 states to 5170 states and 13684 transitions. [2021-06-05 00:35:23,236 INFO L78 Accepts]: Start accepts. Automaton has 5170 states and 13684 transitions. Word has length 114 [2021-06-05 00:35:23,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:23,237 INFO L482 AbstractCegarLoop]: Abstraction has 5170 states and 13684 transitions. [2021-06-05 00:35:23,237 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:23,237 INFO L276 IsEmpty]: Start isEmpty. Operand 5170 states and 13684 transitions. [2021-06-05 00:35:23,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:23,241 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:23,241 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:23,241 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-05 00:35:23,241 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:23,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:23,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1491038198, now seen corresponding path program 21 times [2021-06-05 00:35:23,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:23,241 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689794022] [2021-06-05 00:35:23,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:23,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:23,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:23,550 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:23,550 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689794022] [2021-06-05 00:35:23,551 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689794022] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:23,551 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:23,551 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:23,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696867948] [2021-06-05 00:35:23,551 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:23,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:23,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:23,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:23,551 INFO L87 Difference]: Start difference. First operand 5170 states and 13684 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:24,259 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:35:24,404 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:35:24,577 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:35:24,767 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:35:24,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:24,881 INFO L93 Difference]: Finished difference Result 8872 states and 23296 transitions. [2021-06-05 00:35:24,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:24,881 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:24,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:24,888 INFO L225 Difference]: With dead ends: 8872 [2021-06-05 00:35:24,888 INFO L226 Difference]: Without dead ends: 8872 [2021-06-05 00:35:24,888 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1234.4ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:24,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8872 states. [2021-06-05 00:35:24,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8872 to 5254. [2021-06-05 00:35:24,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5254 states, 5252 states have (on average 2.6523229246001523) internal successors, (13930), 5253 states have internal predecessors, (13930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:24,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5254 states to 5254 states and 13930 transitions. [2021-06-05 00:35:24,952 INFO L78 Accepts]: Start accepts. Automaton has 5254 states and 13930 transitions. Word has length 114 [2021-06-05 00:35:24,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:24,953 INFO L482 AbstractCegarLoop]: Abstraction has 5254 states and 13930 transitions. [2021-06-05 00:35:24,953 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:24,953 INFO L276 IsEmpty]: Start isEmpty. Operand 5254 states and 13930 transitions. [2021-06-05 00:35:24,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:24,957 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:24,957 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:24,957 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-05 00:35:24,957 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:24,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:24,958 INFO L82 PathProgramCache]: Analyzing trace with hash -836185850, now seen corresponding path program 22 times [2021-06-05 00:35:24,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:24,958 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874971034] [2021-06-05 00:35:24,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:25,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:25,260 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:25,260 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874971034] [2021-06-05 00:35:25,260 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874971034] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:25,260 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:25,260 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 00:35:25,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831893361] [2021-06-05 00:35:25,261 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 00:35:25,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:25,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 00:35:25,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:35:25,261 INFO L87 Difference]: Start difference. First operand 5254 states and 13930 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:26,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:26,356 INFO L93 Difference]: Finished difference Result 6841 states and 17188 transitions. [2021-06-05 00:35:26,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 00:35:26,356 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:26,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:26,362 INFO L225 Difference]: With dead ends: 6841 [2021-06-05 00:35:26,362 INFO L226 Difference]: Without dead ends: 6841 [2021-06-05 00:35:26,363 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 957.5ms TimeCoverageRelationStatistics Valid=349, Invalid=911, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 00:35:26,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6841 states. [2021-06-05 00:35:26,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6841 to 5264. [2021-06-05 00:35:26,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5264 states, 5262 states have (on average 2.653933865450399) internal successors, (13965), 5263 states have internal predecessors, (13965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:26,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5264 states to 5264 states and 13965 transitions. [2021-06-05 00:35:26,426 INFO L78 Accepts]: Start accepts. Automaton has 5264 states and 13965 transitions. Word has length 114 [2021-06-05 00:35:26,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:26,427 INFO L482 AbstractCegarLoop]: Abstraction has 5264 states and 13965 transitions. [2021-06-05 00:35:26,427 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:26,427 INFO L276 IsEmpty]: Start isEmpty. Operand 5264 states and 13965 transitions. [2021-06-05 00:35:26,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:26,431 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:26,431 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:26,431 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-05 00:35:26,431 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:26,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:26,431 INFO L82 PathProgramCache]: Analyzing trace with hash 2084443694, now seen corresponding path program 23 times [2021-06-05 00:35:26,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:26,432 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160962280] [2021-06-05 00:35:26,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:26,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:26,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:26,754 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:26,754 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160962280] [2021-06-05 00:35:26,754 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160962280] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:26,754 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:26,754 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:26,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374440345] [2021-06-05 00:35:26,754 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:26,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:26,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:26,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:26,755 INFO L87 Difference]: Start difference. First operand 5264 states and 13965 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:27,338 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-06-05 00:35:27,470 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:35:27,609 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:35:27,797 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:35:27,982 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:35:28,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:28,122 INFO L93 Difference]: Finished difference Result 14355 states and 37756 transitions. [2021-06-05 00:35:28,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:28,122 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:28,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:28,135 INFO L225 Difference]: With dead ends: 14355 [2021-06-05 00:35:28,135 INFO L226 Difference]: Without dead ends: 14355 [2021-06-05 00:35:28,136 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1262.5ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:28,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14355 states. [2021-06-05 00:35:28,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14355 to 5306. [2021-06-05 00:35:28,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5306 states, 5304 states have (on average 2.6561085972850678) internal successors, (14088), 5305 states have internal predecessors, (14088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:28,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5306 states to 5306 states and 14088 transitions. [2021-06-05 00:35:28,226 INFO L78 Accepts]: Start accepts. Automaton has 5306 states and 14088 transitions. Word has length 114 [2021-06-05 00:35:28,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:28,226 INFO L482 AbstractCegarLoop]: Abstraction has 5306 states and 14088 transitions. [2021-06-05 00:35:28,226 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:28,227 INFO L276 IsEmpty]: Start isEmpty. Operand 5306 states and 14088 transitions. [2021-06-05 00:35:28,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:28,230 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:28,230 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:28,230 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-05 00:35:28,230 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:28,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:28,231 INFO L82 PathProgramCache]: Analyzing trace with hash -297286866, now seen corresponding path program 24 times [2021-06-05 00:35:28,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:28,231 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245703726] [2021-06-05 00:35:28,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:28,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:28,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:28,545 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:28,545 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245703726] [2021-06-05 00:35:28,545 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245703726] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:28,545 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:28,545 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:28,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473052666] [2021-06-05 00:35:28,546 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:28,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:28,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:28,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:28,546 INFO L87 Difference]: Start difference. First operand 5306 states and 14088 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:29,232 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:35:29,392 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:35:29,552 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:35:29,734 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:35:29,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:29,870 INFO L93 Difference]: Finished difference Result 14443 states and 37922 transitions. [2021-06-05 00:35:29,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:29,871 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:29,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:29,883 INFO L225 Difference]: With dead ends: 14443 [2021-06-05 00:35:29,884 INFO L226 Difference]: Without dead ends: 14443 [2021-06-05 00:35:29,884 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1227.7ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:29,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14443 states. [2021-06-05 00:35:29,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14443 to 5320. [2021-06-05 00:35:29,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5320 states, 5318 states have (on average 2.656825874388868) internal successors, (14129), 5319 states have internal predecessors, (14129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:29,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5320 states to 5320 states and 14129 transitions. [2021-06-05 00:35:29,975 INFO L78 Accepts]: Start accepts. Automaton has 5320 states and 14129 transitions. Word has length 114 [2021-06-05 00:35:29,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:29,975 INFO L482 AbstractCegarLoop]: Abstraction has 5320 states and 14129 transitions. [2021-06-05 00:35:29,975 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:29,975 INFO L276 IsEmpty]: Start isEmpty. Operand 5320 states and 14129 transitions. [2021-06-05 00:35:29,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:29,978 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:29,979 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:29,979 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-05 00:35:29,979 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:29,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:29,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1838187756, now seen corresponding path program 25 times [2021-06-05 00:35:29,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:29,979 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687308211] [2021-06-05 00:35:29,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:30,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:30,329 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:30,329 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687308211] [2021-06-05 00:35:30,329 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687308211] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:30,329 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:30,329 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:30,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7331444] [2021-06-05 00:35:30,329 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:30,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:30,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:30,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:30,330 INFO L87 Difference]: Start difference. First operand 5320 states and 14129 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:31,039 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:35:31,201 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:35:31,375 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:35:31,554 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:35:31,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:31,698 INFO L93 Difference]: Finished difference Result 13859 states and 36040 transitions. [2021-06-05 00:35:31,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:31,699 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:31,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:31,710 INFO L225 Difference]: With dead ends: 13859 [2021-06-05 00:35:31,710 INFO L226 Difference]: Without dead ends: 13859 [2021-06-05 00:35:31,711 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1249.0ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:31,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13859 states. [2021-06-05 00:35:31,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13859 to 5278. [2021-06-05 00:35:31,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5278 states, 5276 states have (on average 2.6546626231993935) internal successors, (14006), 5277 states have internal predecessors, (14006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:31,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5278 states to 5278 states and 14006 transitions. [2021-06-05 00:35:31,796 INFO L78 Accepts]: Start accepts. Automaton has 5278 states and 14006 transitions. Word has length 114 [2021-06-05 00:35:31,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:31,797 INFO L482 AbstractCegarLoop]: Abstraction has 5278 states and 14006 transitions. [2021-06-05 00:35:31,797 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:31,797 INFO L276 IsEmpty]: Start isEmpty. Operand 5278 states and 14006 transitions. [2021-06-05 00:35:31,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:31,800 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:31,800 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:31,801 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-05 00:35:31,801 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:31,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:31,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1705626380, now seen corresponding path program 26 times [2021-06-05 00:35:31,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:31,801 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647686155] [2021-06-05 00:35:31,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:32,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:32,135 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:32,135 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647686155] [2021-06-05 00:35:32,135 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647686155] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:32,136 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:32,136 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:32,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101404706] [2021-06-05 00:35:32,136 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:32,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:32,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:32,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:32,136 INFO L87 Difference]: Start difference. First operand 5278 states and 14006 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:32,996 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:35:33,180 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:35:33,366 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:35:33,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:33,483 INFO L93 Difference]: Finished difference Result 10401 states and 27226 transitions. [2021-06-05 00:35:33,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:33,483 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:33,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:33,492 INFO L225 Difference]: With dead ends: 10401 [2021-06-05 00:35:33,492 INFO L226 Difference]: Without dead ends: 10401 [2021-06-05 00:35:33,493 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1255.6ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:33,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10401 states. [2021-06-05 00:35:33,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10401 to 5264. [2021-06-05 00:35:33,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5264 states, 5262 states have (on average 2.653933865450399) internal successors, (13965), 5263 states have internal predecessors, (13965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:33,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5264 states to 5264 states and 13965 transitions. [2021-06-05 00:35:33,573 INFO L78 Accepts]: Start accepts. Automaton has 5264 states and 13965 transitions. Word has length 114 [2021-06-05 00:35:33,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:33,573 INFO L482 AbstractCegarLoop]: Abstraction has 5264 states and 13965 transitions. [2021-06-05 00:35:33,573 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:33,573 INFO L276 IsEmpty]: Start isEmpty. Operand 5264 states and 13965 transitions. [2021-06-05 00:35:33,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:33,577 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:33,577 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:33,577 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-05 00:35:33,578 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:33,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:33,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1678541386, now seen corresponding path program 27 times [2021-06-05 00:35:33,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:33,578 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998397141] [2021-06-05 00:35:33,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:33,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:33,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:33,923 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:33,923 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998397141] [2021-06-05 00:35:33,923 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998397141] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:33,923 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:33,923 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:33,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559278135] [2021-06-05 00:35:33,923 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:33,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:33,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:33,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:33,924 INFO L87 Difference]: Start difference. First operand 5264 states and 13965 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:34,644 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:35:34,785 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:35:34,966 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:35:35,151 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:35:35,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:35,297 INFO L93 Difference]: Finished difference Result 12678 states and 33180 transitions. [2021-06-05 00:35:35,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:35,298 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:35,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:35,310 INFO L225 Difference]: With dead ends: 12678 [2021-06-05 00:35:35,310 INFO L226 Difference]: Without dead ends: 12678 [2021-06-05 00:35:35,310 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1261.4ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:35,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12678 states. [2021-06-05 00:35:35,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12678 to 5320. [2021-06-05 00:35:35,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5320 states, 5318 states have (on average 2.656825874388868) internal successors, (14129), 5319 states have internal predecessors, (14129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:35,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5320 states to 5320 states and 14129 transitions. [2021-06-05 00:35:35,395 INFO L78 Accepts]: Start accepts. Automaton has 5320 states and 14129 transitions. Word has length 114 [2021-06-05 00:35:35,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:35,395 INFO L482 AbstractCegarLoop]: Abstraction has 5320 states and 14129 transitions. [2021-06-05 00:35:35,395 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:35,395 INFO L276 IsEmpty]: Start isEmpty. Operand 5320 states and 14129 transitions. [2021-06-05 00:35:35,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:35,399 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:35,399 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:35,399 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-05 00:35:35,399 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:35,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:35,399 INFO L82 PathProgramCache]: Analyzing trace with hash -703189174, now seen corresponding path program 28 times [2021-06-05 00:35:35,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:35,400 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125218498] [2021-06-05 00:35:35,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:35,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:35,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:35,784 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:35,784 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125218498] [2021-06-05 00:35:35,784 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125218498] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:35,784 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:35,784 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:35,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046530749] [2021-06-05 00:35:35,785 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:35,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:35,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:35,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:35,785 INFO L87 Difference]: Start difference. First operand 5320 states and 14129 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:36,489 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:35:36,658 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:35:36,823 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:35:37,006 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:35:37,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:37,150 INFO L93 Difference]: Finished difference Result 12766 states and 33346 transitions. [2021-06-05 00:35:37,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:37,150 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:37,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:37,161 INFO L225 Difference]: With dead ends: 12766 [2021-06-05 00:35:37,161 INFO L226 Difference]: Without dead ends: 12766 [2021-06-05 00:35:37,161 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1273.4ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:37,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12766 states. [2021-06-05 00:35:37,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12766 to 5334. [2021-06-05 00:35:37,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5334 states, 5332 states have (on average 2.6575393848462117) internal successors, (14170), 5333 states have internal predecessors, (14170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:37,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5334 states to 5334 states and 14170 transitions. [2021-06-05 00:35:37,242 INFO L78 Accepts]: Start accepts. Automaton has 5334 states and 14170 transitions. Word has length 114 [2021-06-05 00:35:37,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:37,243 INFO L482 AbstractCegarLoop]: Abstraction has 5334 states and 14170 transitions. [2021-06-05 00:35:37,243 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:37,243 INFO L276 IsEmpty]: Start isEmpty. Operand 5334 states and 14170 transitions. [2021-06-05 00:35:37,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:37,246 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:37,247 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:37,247 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-05 00:35:37,247 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:37,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:37,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1432285448, now seen corresponding path program 29 times [2021-06-05 00:35:37,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:37,247 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41479038] [2021-06-05 00:35:37,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:37,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:37,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:37,602 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:37,602 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41479038] [2021-06-05 00:35:37,602 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41479038] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:37,602 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:37,602 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:37,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422774698] [2021-06-05 00:35:37,603 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:37,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:37,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:37,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:37,603 INFO L87 Difference]: Start difference. First operand 5334 states and 14170 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:38,303 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:35:38,463 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:35:38,651 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:35:38,828 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:35:38,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:38,954 INFO L93 Difference]: Finished difference Result 12182 states and 31464 transitions. [2021-06-05 00:35:38,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:38,957 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:38,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:38,968 INFO L225 Difference]: With dead ends: 12182 [2021-06-05 00:35:38,968 INFO L226 Difference]: Without dead ends: 12182 [2021-06-05 00:35:38,968 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1284.8ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:38,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12182 states. [2021-06-05 00:35:39,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12182 to 5292. [2021-06-05 00:35:39,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5292 states, 5290 states have (on average 2.6553875236294897) internal successors, (14047), 5291 states have internal predecessors, (14047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:39,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5292 states to 5292 states and 14047 transitions. [2021-06-05 00:35:39,053 INFO L78 Accepts]: Start accepts. Automaton has 5292 states and 14047 transitions. Word has length 114 [2021-06-05 00:35:39,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:39,054 INFO L482 AbstractCegarLoop]: Abstraction has 5292 states and 14047 transitions. [2021-06-05 00:35:39,054 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:39,054 INFO L276 IsEmpty]: Start isEmpty. Operand 5292 states and 14047 transitions. [2021-06-05 00:35:39,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:39,057 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:39,058 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:39,058 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-05 00:35:39,058 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:39,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:39,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1299724072, now seen corresponding path program 30 times [2021-06-05 00:35:39,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:39,058 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570665792] [2021-06-05 00:35:39,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:39,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:39,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:39,404 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:39,404 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570665792] [2021-06-05 00:35:39,404 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570665792] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:39,404 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:39,404 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:39,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068861608] [2021-06-05 00:35:39,405 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:39,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:39,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:39,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:39,405 INFO L87 Difference]: Start difference. First operand 5292 states and 14047 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:40,254 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:35:40,437 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:35:40,622 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:35:40,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:40,748 INFO L93 Difference]: Finished difference Result 12234 states and 31730 transitions. [2021-06-05 00:35:40,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:40,749 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:40,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:40,758 INFO L225 Difference]: With dead ends: 12234 [2021-06-05 00:35:40,759 INFO L226 Difference]: Without dead ends: 12234 [2021-06-05 00:35:40,759 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1239.5ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:40,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12234 states. [2021-06-05 00:35:40,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12234 to 5278. [2021-06-05 00:35:40,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5278 states, 5276 states have (on average 2.6546626231993935) internal successors, (14006), 5277 states have internal predecessors, (14006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:40,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5278 states to 5278 states and 14006 transitions. [2021-06-05 00:35:40,834 INFO L78 Accepts]: Start accepts. Automaton has 5278 states and 14006 transitions. Word has length 114 [2021-06-05 00:35:40,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:40,835 INFO L482 AbstractCegarLoop]: Abstraction has 5278 states and 14006 transitions. [2021-06-05 00:35:40,835 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:40,835 INFO L276 IsEmpty]: Start isEmpty. Operand 5278 states and 14006 transitions. [2021-06-05 00:35:40,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:40,838 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:40,838 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:40,838 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-06-05 00:35:40,838 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:40,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:40,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1639968430, now seen corresponding path program 31 times [2021-06-05 00:35:40,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:40,839 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561091614] [2021-06-05 00:35:40,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:40,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:41,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:41,172 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:41,172 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561091614] [2021-06-05 00:35:41,172 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561091614] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:41,172 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:41,172 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:41,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934642605] [2021-06-05 00:35:41,174 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:41,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:41,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:41,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:41,174 INFO L87 Difference]: Start difference. First operand 5278 states and 14006 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:42,025 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:35:42,205 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:35:42,389 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:35:42,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:42,507 INFO L93 Difference]: Finished difference Result 8660 states and 22484 transitions. [2021-06-05 00:35:42,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:42,507 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:42,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:42,514 INFO L225 Difference]: With dead ends: 8660 [2021-06-05 00:35:42,515 INFO L226 Difference]: Without dead ends: 8660 [2021-06-05 00:35:42,515 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1243.7ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:42,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8660 states. [2021-06-05 00:35:42,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8660 to 5264. [2021-06-05 00:35:42,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5264 states, 5262 states have (on average 2.653933865450399) internal successors, (13965), 5263 states have internal predecessors, (13965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:42,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5264 states to 5264 states and 13965 transitions. [2021-06-05 00:35:42,577 INFO L78 Accepts]: Start accepts. Automaton has 5264 states and 13965 transitions. Word has length 114 [2021-06-05 00:35:42,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:42,577 INFO L482 AbstractCegarLoop]: Abstraction has 5264 states and 13965 transitions. [2021-06-05 00:35:42,577 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:42,577 INFO L276 IsEmpty]: Start isEmpty. Operand 5264 states and 13965 transitions. [2021-06-05 00:35:42,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:42,581 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:42,581 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:42,581 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-06-05 00:35:42,581 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:42,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:42,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1724788430, now seen corresponding path program 32 times [2021-06-05 00:35:42,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:42,582 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769314528] [2021-06-05 00:35:42,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:42,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:42,903 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:42,903 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769314528] [2021-06-05 00:35:42,903 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769314528] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:42,903 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:42,903 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:42,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238672695] [2021-06-05 00:35:42,903 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:42,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:42,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:42,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:42,904 INFO L87 Difference]: Start difference. First operand 5264 states and 13965 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:43,632 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:35:43,769 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:35:43,942 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:35:44,126 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:35:44,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:44,277 INFO L93 Difference]: Finished difference Result 18822 states and 49472 transitions. [2021-06-05 00:35:44,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:44,277 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:44,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:44,293 INFO L225 Difference]: With dead ends: 18822 [2021-06-05 00:35:44,294 INFO L226 Difference]: Without dead ends: 18822 [2021-06-05 00:35:44,294 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1238.7ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:44,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18822 states. [2021-06-05 00:35:44,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18822 to 5400. [2021-06-05 00:35:44,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5400 states, 5398 states have (on average 2.660059281215265) internal successors, (14359), 5399 states have internal predecessors, (14359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:44,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5400 states to 5400 states and 14359 transitions. [2021-06-05 00:35:44,415 INFO L78 Accepts]: Start accepts. Automaton has 5400 states and 14359 transitions. Word has length 114 [2021-06-05 00:35:44,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:44,415 INFO L482 AbstractCegarLoop]: Abstraction has 5400 states and 14359 transitions. [2021-06-05 00:35:44,415 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:44,415 INFO L276 IsEmpty]: Start isEmpty. Operand 5400 states and 14359 transitions. [2021-06-05 00:35:44,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:44,419 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:44,423 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:44,423 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-06-05 00:35:44,423 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:44,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:44,424 INFO L82 PathProgramCache]: Analyzing trace with hash -656942130, now seen corresponding path program 33 times [2021-06-05 00:35:44,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:44,424 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497160308] [2021-06-05 00:35:44,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:44,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:44,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:44,747 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:44,747 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497160308] [2021-06-05 00:35:44,747 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497160308] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:44,747 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:44,747 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:44,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739056149] [2021-06-05 00:35:44,747 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:44,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:44,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:44,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:44,748 INFO L87 Difference]: Start difference. First operand 5400 states and 14359 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:45,449 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:35:45,607 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:35:45,768 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:35:45,948 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:35:46,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:46,092 INFO L93 Difference]: Finished difference Result 21446 states and 56195 transitions. [2021-06-05 00:35:46,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:46,093 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:46,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:46,111 INFO L225 Difference]: With dead ends: 21446 [2021-06-05 00:35:46,111 INFO L226 Difference]: Without dead ends: 21446 [2021-06-05 00:35:46,112 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1249.0ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:46,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21446 states. [2021-06-05 00:35:46,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21446 to 5416. [2021-06-05 00:35:46,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5416 states, 5414 states have (on average 2.6606944957517547) internal successors, (14405), 5415 states have internal predecessors, (14405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:46,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5416 states to 5416 states and 14405 transitions. [2021-06-05 00:35:46,234 INFO L78 Accepts]: Start accepts. Automaton has 5416 states and 14405 transitions. Word has length 114 [2021-06-05 00:35:46,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:46,234 INFO L482 AbstractCegarLoop]: Abstraction has 5416 states and 14405 transitions. [2021-06-05 00:35:46,234 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:46,234 INFO L276 IsEmpty]: Start isEmpty. Operand 5416 states and 14405 transitions. [2021-06-05 00:35:46,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:46,238 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:46,238 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:46,238 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-06-05 00:35:46,238 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:46,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:46,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1478532492, now seen corresponding path program 34 times [2021-06-05 00:35:46,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:46,239 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312221242] [2021-06-05 00:35:46,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:46,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:46,558 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:46,558 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312221242] [2021-06-05 00:35:46,558 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312221242] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:46,558 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:46,558 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:46,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575435201] [2021-06-05 00:35:46,559 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:46,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:46,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:46,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:46,559 INFO L87 Difference]: Start difference. First operand 5416 states and 14405 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:47,257 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:35:47,411 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:35:47,579 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:35:47,756 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:35:47,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:47,893 INFO L93 Difference]: Finished difference Result 19726 states and 51483 transitions. [2021-06-05 00:35:47,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:47,893 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:47,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:47,910 INFO L225 Difference]: With dead ends: 19726 [2021-06-05 00:35:47,910 INFO L226 Difference]: Without dead ends: 19726 [2021-06-05 00:35:47,910 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1237.7ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:47,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19726 states. [2021-06-05 00:35:48,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19726 to 5388. [2021-06-05 00:35:48,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5388 states, 5386 states have (on average 2.655959896026736) internal successors, (14305), 5387 states have internal predecessors, (14305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:48,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5388 states to 5388 states and 14305 transitions. [2021-06-05 00:35:48,020 INFO L78 Accepts]: Start accepts. Automaton has 5388 states and 14305 transitions. Word has length 114 [2021-06-05 00:35:48,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:48,020 INFO L482 AbstractCegarLoop]: Abstraction has 5388 states and 14305 transitions. [2021-06-05 00:35:48,020 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:48,020 INFO L276 IsEmpty]: Start isEmpty. Operand 5388 states and 14305 transitions. [2021-06-05 00:35:48,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:48,024 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:48,024 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:48,024 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-06-05 00:35:48,024 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:48,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:48,024 INFO L82 PathProgramCache]: Analyzing trace with hash -335195506, now seen corresponding path program 35 times [2021-06-05 00:35:48,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:48,024 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039595247] [2021-06-05 00:35:48,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:48,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:48,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:48,321 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:48,321 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039595247] [2021-06-05 00:35:48,321 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039595247] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:48,321 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:48,321 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:48,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131039] [2021-06-05 00:35:48,321 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:48,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:48,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:48,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:48,322 INFO L87 Difference]: Start difference. First operand 5388 states and 14305 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:49,034 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:35:49,180 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:35:49,341 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:35:49,521 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:35:49,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:49,671 INFO L93 Difference]: Finished difference Result 18926 states and 49630 transitions. [2021-06-05 00:35:49,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:49,672 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:49,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:49,688 INFO L225 Difference]: With dead ends: 18926 [2021-06-05 00:35:49,688 INFO L226 Difference]: Without dead ends: 18926 [2021-06-05 00:35:49,688 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1200.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:49,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18926 states. [2021-06-05 00:35:49,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18926 to 5420. [2021-06-05 00:35:49,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5420 states, 5418 states have (on average 2.6572535991140644) internal successors, (14397), 5419 states have internal predecessors, (14397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:49,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5420 states to 5420 states and 14397 transitions. [2021-06-05 00:35:49,807 INFO L78 Accepts]: Start accepts. Automaton has 5420 states and 14397 transitions. Word has length 114 [2021-06-05 00:35:49,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:49,807 INFO L482 AbstractCegarLoop]: Abstraction has 5420 states and 14397 transitions. [2021-06-05 00:35:49,807 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:49,807 INFO L276 IsEmpty]: Start isEmpty. Operand 5420 states and 14397 transitions. [2021-06-05 00:35:49,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:49,811 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:49,811 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:49,811 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-06-05 00:35:49,811 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:49,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:49,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1800279116, now seen corresponding path program 36 times [2021-06-05 00:35:49,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:49,811 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005166909] [2021-06-05 00:35:49,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:49,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:50,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:50,102 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:50,102 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005166909] [2021-06-05 00:35:50,103 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005166909] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:50,103 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:50,103 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:50,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400293917] [2021-06-05 00:35:50,103 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:50,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:50,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:50,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:50,103 INFO L87 Difference]: Start difference. First operand 5420 states and 14397 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:50,823 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:35:50,968 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:35:51,142 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:35:51,319 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:35:51,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:51,475 INFO L93 Difference]: Finished difference Result 19772 states and 51490 transitions. [2021-06-05 00:35:51,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:51,475 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:51,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:51,492 INFO L225 Difference]: With dead ends: 19772 [2021-06-05 00:35:51,492 INFO L226 Difference]: Without dead ends: 19772 [2021-06-05 00:35:51,492 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1211.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:51,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19772 states. [2021-06-05 00:35:51,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19772 to 5404. [2021-06-05 00:35:51,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5404 states, 5402 states have (on average 2.6566086634579786) internal successors, (14351), 5403 states have internal predecessors, (14351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:51,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5404 states to 5404 states and 14351 transitions. [2021-06-05 00:35:51,605 INFO L78 Accepts]: Start accepts. Automaton has 5404 states and 14351 transitions. Word has length 114 [2021-06-05 00:35:51,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:51,605 INFO L482 AbstractCegarLoop]: Abstraction has 5404 states and 14351 transitions. [2021-06-05 00:35:51,605 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:51,605 INFO L276 IsEmpty]: Start isEmpty. Operand 5404 states and 14351 transitions. [2021-06-05 00:35:51,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:51,609 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:51,609 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:51,609 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-06-05 00:35:51,610 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:51,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:51,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1696824720, now seen corresponding path program 37 times [2021-06-05 00:35:51,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:51,610 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085201805] [2021-06-05 00:35:51,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:51,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:51,899 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:51,899 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085201805] [2021-06-05 00:35:51,899 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085201805] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:51,899 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:51,899 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:51,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760848013] [2021-06-05 00:35:51,899 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:51,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:51,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:51,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:51,900 INFO L87 Difference]: Start difference. First operand 5404 states and 14351 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:52,627 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:35:52,775 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:35:52,942 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:35:53,120 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:35:53,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:53,269 INFO L93 Difference]: Finished difference Result 19072 states and 49861 transitions. [2021-06-05 00:35:53,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:53,269 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:53,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:53,286 INFO L225 Difference]: With dead ends: 19072 [2021-06-05 00:35:53,286 INFO L226 Difference]: Without dead ends: 19072 [2021-06-05 00:35:53,286 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1225.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:53,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19072 states. [2021-06-05 00:35:53,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19072 to 5420. [2021-06-05 00:35:53,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5420 states, 5418 states have (on average 2.6572535991140644) internal successors, (14397), 5419 states have internal predecessors, (14397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:53,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5420 states to 5420 states and 14397 transitions. [2021-06-05 00:35:53,393 INFO L78 Accepts]: Start accepts. Automaton has 5420 states and 14397 transitions. Word has length 114 [2021-06-05 00:35:53,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:53,394 INFO L482 AbstractCegarLoop]: Abstraction has 5420 states and 14397 transitions. [2021-06-05 00:35:53,394 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:53,394 INFO L276 IsEmpty]: Start isEmpty. Operand 5420 states and 14397 transitions. [2021-06-05 00:35:53,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:53,398 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:53,398 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:53,398 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-06-05 00:35:53,398 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:53,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:53,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1945371700, now seen corresponding path program 38 times [2021-06-05 00:35:53,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:53,398 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620566272] [2021-06-05 00:35:53,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:53,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:53,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:53,680 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:53,680 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620566272] [2021-06-05 00:35:53,680 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620566272] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:53,680 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:53,681 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:53,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495189755] [2021-06-05 00:35:53,681 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:53,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:53,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:53,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:53,681 INFO L87 Difference]: Start difference. First operand 5420 states and 14397 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:54,390 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:35:54,536 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:35:54,710 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:35:54,890 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:35:55,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:55,029 INFO L93 Difference]: Finished difference Result 16330 states and 42949 transitions. [2021-06-05 00:35:55,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:55,029 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:55,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:55,043 INFO L225 Difference]: With dead ends: 16330 [2021-06-05 00:35:55,043 INFO L226 Difference]: Without dead ends: 16330 [2021-06-05 00:35:55,044 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1194.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:55,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16330 states. [2021-06-05 00:35:55,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16330 to 5376. [2021-06-05 00:35:55,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5376 states, 5374 states have (on average 2.654075176777075) internal successors, (14263), 5375 states have internal predecessors, (14263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:55,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5376 states to 5376 states and 14263 transitions. [2021-06-05 00:35:55,157 INFO L78 Accepts]: Start accepts. Automaton has 5376 states and 14263 transitions. Word has length 114 [2021-06-05 00:35:55,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:55,157 INFO L482 AbstractCegarLoop]: Abstraction has 5376 states and 14263 transitions. [2021-06-05 00:35:55,157 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:55,157 INFO L276 IsEmpty]: Start isEmpty. Operand 5376 states and 14263 transitions. [2021-06-05 00:35:55,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:55,161 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:55,161 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:55,161 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-06-05 00:35:55,161 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:55,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:55,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1630110192, now seen corresponding path program 39 times [2021-06-05 00:35:55,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:55,162 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706186352] [2021-06-05 00:35:55,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:55,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:55,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:55,481 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:55,481 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706186352] [2021-06-05 00:35:55,481 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706186352] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:55,481 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:55,481 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:55,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259429462] [2021-06-05 00:35:55,482 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:55,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:55,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:55,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:55,482 INFO L87 Difference]: Start difference. First operand 5376 states and 14263 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:56,185 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:35:56,321 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:35:56,495 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:35:56,675 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:35:56,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:56,818 INFO L93 Difference]: Finished difference Result 17522 states and 46341 transitions. [2021-06-05 00:35:56,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:56,818 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:56,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:56,834 INFO L225 Difference]: With dead ends: 17522 [2021-06-05 00:35:56,834 INFO L226 Difference]: Without dead ends: 17522 [2021-06-05 00:35:56,834 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1219.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:56,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17522 states. [2021-06-05 00:35:56,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17522 to 5424. [2021-06-05 00:35:56,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5424 states, 5422 states have (on average 2.656030984876429) internal successors, (14401), 5423 states have internal predecessors, (14401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:56,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5424 states to 5424 states and 14401 transitions. [2021-06-05 00:35:56,938 INFO L78 Accepts]: Start accepts. Automaton has 5424 states and 14401 transitions. Word has length 114 [2021-06-05 00:35:56,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:56,938 INFO L482 AbstractCegarLoop]: Abstraction has 5424 states and 14401 transitions. [2021-06-05 00:35:56,938 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:56,938 INFO L276 IsEmpty]: Start isEmpty. Operand 5424 states and 14401 transitions. [2021-06-05 00:35:56,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:56,942 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:56,942 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:56,942 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-06-05 00:35:56,942 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:56,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:56,942 INFO L82 PathProgramCache]: Analyzing trace with hash -751620368, now seen corresponding path program 40 times [2021-06-05 00:35:56,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:56,942 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301542106] [2021-06-05 00:35:56,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:56,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:57,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:57,253 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:57,253 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301542106] [2021-06-05 00:35:57,253 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301542106] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:57,253 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:57,253 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:57,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606494112] [2021-06-05 00:35:57,254 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:57,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:57,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:57,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:57,254 INFO L87 Difference]: Start difference. First operand 5424 states and 14401 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:57,851 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-06-05 00:35:57,979 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:35:58,142 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:35:58,301 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:35:58,483 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:35:58,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:58,631 INFO L93 Difference]: Finished difference Result 17598 states and 46477 transitions. [2021-06-05 00:35:58,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:35:58,631 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:35:58,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:58,647 INFO L225 Difference]: With dead ends: 17598 [2021-06-05 00:35:58,647 INFO L226 Difference]: Without dead ends: 17598 [2021-06-05 00:35:58,647 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1232.9ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:35:58,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17598 states. [2021-06-05 00:35:58,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17598 to 5440. [2021-06-05 00:35:58,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5438 states have (on average 2.656675248253034) internal successors, (14447), 5439 states have internal predecessors, (14447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:58,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14447 transitions. [2021-06-05 00:35:58,755 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14447 transitions. Word has length 114 [2021-06-05 00:35:58,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:58,756 INFO L482 AbstractCegarLoop]: Abstraction has 5440 states and 14447 transitions. [2021-06-05 00:35:58,756 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:58,756 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14447 transitions. [2021-06-05 00:35:58,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:35:58,759 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:58,759 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:58,760 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-06-05 00:35:58,760 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:58,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:58,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1383854254, now seen corresponding path program 41 times [2021-06-05 00:35:58,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:58,760 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379975415] [2021-06-05 00:35:58,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:59,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:59,077 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:59,077 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379975415] [2021-06-05 00:35:59,077 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379975415] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:59,077 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:59,077 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:59,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327500547] [2021-06-05 00:35:59,077 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:59,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:59,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:59,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:59,078 INFO L87 Difference]: Start difference. First operand 5440 states and 14447 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:59,784 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:35:59,946 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:36:00,118 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:36:00,296 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:36:00,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:00,443 INFO L93 Difference]: Finished difference Result 16982 states and 44503 transitions. [2021-06-05 00:36:00,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:00,444 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:00,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:00,458 INFO L225 Difference]: With dead ends: 16982 [2021-06-05 00:36:00,458 INFO L226 Difference]: Without dead ends: 16982 [2021-06-05 00:36:00,458 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1224.8ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:00,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16982 states. [2021-06-05 00:36:00,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16982 to 5392. [2021-06-05 00:36:00,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5392 states, 5390 states have (on average 2.6547309833024118) internal successors, (14309), 5391 states have internal predecessors, (14309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:00,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5392 states to 5392 states and 14309 transitions. [2021-06-05 00:36:00,573 INFO L78 Accepts]: Start accepts. Automaton has 5392 states and 14309 transitions. Word has length 114 [2021-06-05 00:36:00,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:00,573 INFO L482 AbstractCegarLoop]: Abstraction has 5392 states and 14309 transitions. [2021-06-05 00:36:00,573 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:00,573 INFO L276 IsEmpty]: Start isEmpty. Operand 5392 states and 14309 transitions. [2021-06-05 00:36:00,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:00,577 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:00,577 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:00,577 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-06-05 00:36:00,577 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:00,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:00,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1251292878, now seen corresponding path program 42 times [2021-06-05 00:36:00,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:00,578 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82918361] [2021-06-05 00:36:00,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:00,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:00,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:00,896 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:00,896 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82918361] [2021-06-05 00:36:00,896 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82918361] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:00,896 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:00,896 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:00,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322983552] [2021-06-05 00:36:00,897 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:00,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:00,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:00,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:00,897 INFO L87 Difference]: Start difference. First operand 5392 states and 14309 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:01,745 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:36:01,923 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:36:02,104 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:36:02,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:02,243 INFO L93 Difference]: Finished difference Result 13742 states and 36256 transitions. [2021-06-05 00:36:02,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:02,243 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:02,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:02,255 INFO L225 Difference]: With dead ends: 13742 [2021-06-05 00:36:02,255 INFO L226 Difference]: Without dead ends: 13742 [2021-06-05 00:36:02,256 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1210.3ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:02,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13742 states. [2021-06-05 00:36:02,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13742 to 5364. [2021-06-05 00:36:02,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5364 states, 5362 states have (on average 2.653301007086908) internal successors, (14227), 5363 states have internal predecessors, (14227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:02,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5364 states to 5364 states and 14227 transitions. [2021-06-05 00:36:02,340 INFO L78 Accepts]: Start accepts. Automaton has 5364 states and 14227 transitions. Word has length 114 [2021-06-05 00:36:02,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:02,340 INFO L482 AbstractCegarLoop]: Abstraction has 5364 states and 14227 transitions. [2021-06-05 00:36:02,340 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:02,341 INFO L276 IsEmpty]: Start isEmpty. Operand 5364 states and 14227 transitions. [2021-06-05 00:36:02,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:02,344 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:02,344 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:02,345 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-06-05 00:36:02,345 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:02,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:02,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1732158226, now seen corresponding path program 43 times [2021-06-05 00:36:02,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:02,345 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500555687] [2021-06-05 00:36:02,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:02,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:02,644 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:02,644 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500555687] [2021-06-05 00:36:02,644 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500555687] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:02,644 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:02,645 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:02,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058464865] [2021-06-05 00:36:02,645 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:02,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:02,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:02,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:02,645 INFO L87 Difference]: Start difference. First operand 5364 states and 14227 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:03,357 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:36:03,493 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:36:03,674 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:36:03,852 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:36:03,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:03,977 INFO L93 Difference]: Finished difference Result 12756 states and 33593 transitions. [2021-06-05 00:36:03,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:03,978 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:03,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:03,988 INFO L225 Difference]: With dead ends: 12756 [2021-06-05 00:36:03,988 INFO L226 Difference]: Without dead ends: 12756 [2021-06-05 00:36:03,988 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1218.3ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:04,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12756 states. [2021-06-05 00:36:04,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12756 to 5484. [2021-06-05 00:36:04,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 5482 states have (on average 2.6587012039401676) internal successors, (14575), 5483 states have internal predecessors, (14575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:04,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 14575 transitions. [2021-06-05 00:36:04,070 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 14575 transitions. Word has length 114 [2021-06-05 00:36:04,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:04,070 INFO L482 AbstractCegarLoop]: Abstraction has 5484 states and 14575 transitions. [2021-06-05 00:36:04,070 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:04,070 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 14575 transitions. [2021-06-05 00:36:04,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:04,074 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:04,074 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:04,074 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-06-05 00:36:04,074 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:04,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:04,075 INFO L82 PathProgramCache]: Analyzing trace with hash 181078510, now seen corresponding path program 44 times [2021-06-05 00:36:04,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:04,075 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995557122] [2021-06-05 00:36:04,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:04,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:04,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:04,380 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:04,380 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995557122] [2021-06-05 00:36:04,380 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995557122] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:04,380 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:04,380 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:04,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947346790] [2021-06-05 00:36:04,380 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:04,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:04,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:04,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:04,381 INFO L87 Difference]: Start difference. First operand 5484 states and 14575 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:05,088 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:36:05,242 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:36:05,397 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:36:05,577 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:36:05,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:05,717 INFO L93 Difference]: Finished difference Result 15380 states and 40316 transitions. [2021-06-05 00:36:05,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:05,717 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:05,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:05,731 INFO L225 Difference]: With dead ends: 15380 [2021-06-05 00:36:05,731 INFO L226 Difference]: Without dead ends: 15380 [2021-06-05 00:36:05,731 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1219.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:05,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15380 states. [2021-06-05 00:36:05,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15380 to 5500. [2021-06-05 00:36:05,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5500 states, 5498 states have (on average 2.659330665696617) internal successors, (14621), 5499 states have internal predecessors, (14621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:05,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5500 states to 5500 states and 14621 transitions. [2021-06-05 00:36:05,847 INFO L78 Accepts]: Start accepts. Automaton has 5500 states and 14621 transitions. Word has length 114 [2021-06-05 00:36:05,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:05,847 INFO L482 AbstractCegarLoop]: Abstraction has 5500 states and 14621 transitions. [2021-06-05 00:36:05,847 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:05,847 INFO L276 IsEmpty]: Start isEmpty. Operand 5500 states and 14621 transitions. [2021-06-05 00:36:05,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:05,851 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:05,851 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:05,851 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-06-05 00:36:05,851 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:05,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:05,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1978414164, now seen corresponding path program 45 times [2021-06-05 00:36:05,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:05,852 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454642695] [2021-06-05 00:36:05,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:06,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:06,190 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:06,190 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454642695] [2021-06-05 00:36:06,190 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454642695] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:06,190 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:06,190 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:06,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126208335] [2021-06-05 00:36:06,190 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:06,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:06,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:06,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:06,191 INFO L87 Difference]: Start difference. First operand 5500 states and 14621 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:06,911 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:36:07,068 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:36:07,238 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:36:07,417 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:36:07,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:07,553 INFO L93 Difference]: Finished difference Result 13660 states and 35604 transitions. [2021-06-05 00:36:07,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:07,553 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:07,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:07,565 INFO L225 Difference]: With dead ends: 13660 [2021-06-05 00:36:07,565 INFO L226 Difference]: Without dead ends: 13660 [2021-06-05 00:36:07,565 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1234.8ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:07,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13660 states. [2021-06-05 00:36:07,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13660 to 5452. [2021-06-05 00:36:07,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5452 states, 5450 states have (on average 2.6574311926605505) internal successors, (14483), 5451 states have internal predecessors, (14483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:07,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5452 states to 5452 states and 14483 transitions. [2021-06-05 00:36:07,652 INFO L78 Accepts]: Start accepts. Automaton has 5452 states and 14483 transitions. Word has length 114 [2021-06-05 00:36:07,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:07,653 INFO L482 AbstractCegarLoop]: Abstraction has 5452 states and 14483 transitions. [2021-06-05 00:36:07,653 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:07,653 INFO L276 IsEmpty]: Start isEmpty. Operand 5452 states and 14483 transitions. [2021-06-05 00:36:07,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:07,657 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:07,657 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:07,657 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-06-05 00:36:07,657 INFO L430 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:07,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:07,657 INFO L82 PathProgramCache]: Analyzing trace with hash 502825134, now seen corresponding path program 46 times [2021-06-05 00:36:07,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:07,657 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063085119] [2021-06-05 00:36:07,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:07,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:07,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:07,935 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:07,936 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063085119] [2021-06-05 00:36:07,936 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063085119] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:07,936 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:07,936 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:07,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605357853] [2021-06-05 00:36:07,936 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:07,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:07,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:07,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:07,936 INFO L87 Difference]: Start difference. First operand 5452 states and 14483 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:08,645 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:36:08,789 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:36:08,961 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:36:09,139 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:36:09,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:09,272 INFO L93 Difference]: Finished difference Result 16736 states and 43533 transitions. [2021-06-05 00:36:09,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:09,273 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:09,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:09,286 INFO L225 Difference]: With dead ends: 16736 [2021-06-05 00:36:09,286 INFO L226 Difference]: Without dead ends: 16736 [2021-06-05 00:36:09,287 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1217.7ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:09,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16736 states. [2021-06-05 00:36:09,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16736 to 5484. [2021-06-05 00:36:09,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 5482 states have (on average 2.6587012039401676) internal successors, (14575), 5483 states have internal predecessors, (14575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:09,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 14575 transitions. [2021-06-05 00:36:09,383 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 14575 transitions. Word has length 114 [2021-06-05 00:36:09,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:09,383 INFO L482 AbstractCegarLoop]: Abstraction has 5484 states and 14575 transitions. [2021-06-05 00:36:09,383 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:09,383 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 14575 transitions. [2021-06-05 00:36:09,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:09,387 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:09,387 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:09,387 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-06-05 00:36:09,387 INFO L430 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:09,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:09,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1656667540, now seen corresponding path program 47 times [2021-06-05 00:36:09,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:09,388 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362494046] [2021-06-05 00:36:09,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:09,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:09,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:09,674 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:09,674 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362494046] [2021-06-05 00:36:09,674 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362494046] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:09,674 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:09,674 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:09,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065018172] [2021-06-05 00:36:09,674 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:09,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:09,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:09,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:09,675 INFO L87 Difference]: Start difference. First operand 5484 states and 14575 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:10,386 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:36:10,529 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:36:10,701 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:36:10,877 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:36:11,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:11,028 INFO L93 Difference]: Finished difference Result 17582 states and 45393 transitions. [2021-06-05 00:36:11,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:11,028 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:11,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:11,043 INFO L225 Difference]: With dead ends: 17582 [2021-06-05 00:36:11,043 INFO L226 Difference]: Without dead ends: 17582 [2021-06-05 00:36:11,043 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1203.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:11,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17582 states. [2021-06-05 00:36:11,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17582 to 5468. [2021-06-05 00:36:11,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5468 states, 5466 states have (on average 2.658068057080132) internal successors, (14529), 5467 states have internal predecessors, (14529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:11,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5468 states to 5468 states and 14529 transitions. [2021-06-05 00:36:11,152 INFO L78 Accepts]: Start accepts. Automaton has 5468 states and 14529 transitions. Word has length 114 [2021-06-05 00:36:11,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:11,152 INFO L482 AbstractCegarLoop]: Abstraction has 5468 states and 14529 transitions. [2021-06-05 00:36:11,152 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:11,152 INFO L276 IsEmpty]: Start isEmpty. Operand 5468 states and 14529 transitions. [2021-06-05 00:36:11,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:11,156 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:11,156 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:11,156 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-06-05 00:36:11,157 INFO L430 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:11,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:11,157 INFO L82 PathProgramCache]: Analyzing trace with hash -858804080, now seen corresponding path program 48 times [2021-06-05 00:36:11,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:11,157 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242687470] [2021-06-05 00:36:11,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:11,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:11,499 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:11,499 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242687470] [2021-06-05 00:36:11,499 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242687470] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:11,499 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:11,499 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:11,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950439935] [2021-06-05 00:36:11,499 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:11,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:11,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:11,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:11,500 INFO L87 Difference]: Start difference. First operand 5468 states and 14529 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:12,194 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:36:12,335 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:36:12,500 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:36:12,675 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:36:12,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:12,804 INFO L93 Difference]: Finished difference Result 16882 states and 43764 transitions. [2021-06-05 00:36:12,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:12,804 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:12,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:12,818 INFO L225 Difference]: With dead ends: 16882 [2021-06-05 00:36:12,818 INFO L226 Difference]: Without dead ends: 16882 [2021-06-05 00:36:12,818 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1266.5ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:12,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16882 states. [2021-06-05 00:36:12,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16882 to 5484. [2021-06-05 00:36:12,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 5482 states have (on average 2.6587012039401676) internal successors, (14575), 5483 states have internal predecessors, (14575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:12,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 14575 transitions. [2021-06-05 00:36:12,916 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 14575 transitions. Word has length 114 [2021-06-05 00:36:12,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:12,916 INFO L482 AbstractCegarLoop]: Abstraction has 5484 states and 14575 transitions. [2021-06-05 00:36:12,916 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:12,917 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 14575 transitions. [2021-06-05 00:36:12,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:12,920 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:12,920 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:12,920 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-06-05 00:36:12,920 INFO L430 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:12,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:12,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1107351060, now seen corresponding path program 49 times [2021-06-05 00:36:12,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:12,921 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734868497] [2021-06-05 00:36:12,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:12,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:13,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:13,203 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:13,203 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734868497] [2021-06-05 00:36:13,203 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734868497] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:13,203 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:13,203 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:13,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765813058] [2021-06-05 00:36:13,203 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:13,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:13,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:13,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:13,204 INFO L87 Difference]: Start difference. First operand 5484 states and 14575 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:13,914 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:36:14,057 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:36:14,214 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:36:14,409 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:36:14,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:14,519 INFO L93 Difference]: Finished difference Result 13840 states and 36102 transitions. [2021-06-05 00:36:14,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:14,519 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:14,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:14,531 INFO L225 Difference]: With dead ends: 13840 [2021-06-05 00:36:14,531 INFO L226 Difference]: Without dead ends: 13840 [2021-06-05 00:36:14,531 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1224.9ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:14,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13840 states. [2021-06-05 00:36:14,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13840 to 5420. [2021-06-05 00:36:14,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5420 states, 5418 states have (on average 2.6561461794019934) internal successors, (14391), 5419 states have internal predecessors, (14391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:14,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5420 states to 5420 states and 14391 transitions. [2021-06-05 00:36:14,617 INFO L78 Accepts]: Start accepts. Automaton has 5420 states and 14391 transitions. Word has length 114 [2021-06-05 00:36:14,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:14,617 INFO L482 AbstractCegarLoop]: Abstraction has 5420 states and 14391 transitions. [2021-06-05 00:36:14,617 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:14,617 INFO L276 IsEmpty]: Start isEmpty. Operand 5420 states and 14391 transitions. [2021-06-05 00:36:14,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:14,621 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:14,621 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:14,621 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-06-05 00:36:14,621 INFO L430 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:14,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:14,622 INFO L82 PathProgramCache]: Analyzing trace with hash 367622960, now seen corresponding path program 50 times [2021-06-05 00:36:14,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:14,622 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587533415] [2021-06-05 00:36:14,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:14,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:14,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:14,907 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:14,907 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587533415] [2021-06-05 00:36:14,907 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587533415] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:14,907 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:14,907 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:14,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773149105] [2021-06-05 00:36:14,908 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:14,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:14,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:14,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:14,908 INFO L87 Difference]: Start difference. First operand 5420 states and 14391 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:15,628 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:36:15,773 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:36:15,935 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:36:16,114 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:36:16,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:16,244 INFO L93 Difference]: Finished difference Result 12316 states and 32367 transitions. [2021-06-05 00:36:16,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:16,244 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:16,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:16,255 INFO L225 Difference]: With dead ends: 12316 [2021-06-05 00:36:16,256 INFO L226 Difference]: Without dead ends: 12316 [2021-06-05 00:36:16,256 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1205.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:16,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12316 states. [2021-06-05 00:36:16,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12316 to 5480. [2021-06-05 00:36:16,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5480 states, 5478 states have (on average 2.6588170865279297) internal successors, (14565), 5479 states have internal predecessors, (14565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:16,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5480 states to 5480 states and 14565 transitions. [2021-06-05 00:36:16,342 INFO L78 Accepts]: Start accepts. Automaton has 5480 states and 14565 transitions. Word has length 114 [2021-06-05 00:36:16,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:16,342 INFO L482 AbstractCegarLoop]: Abstraction has 5480 states and 14565 transitions. [2021-06-05 00:36:16,342 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:16,342 INFO L276 IsEmpty]: Start isEmpty. Operand 5480 states and 14565 transitions. [2021-06-05 00:36:16,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:16,346 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:16,346 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:16,346 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-06-05 00:36:16,346 INFO L430 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:16,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:16,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1791869714, now seen corresponding path program 51 times [2021-06-05 00:36:16,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:16,347 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760273024] [2021-06-05 00:36:16,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:16,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:16,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:16,632 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:16,632 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760273024] [2021-06-05 00:36:16,632 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760273024] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:16,632 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:16,632 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:16,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152001345] [2021-06-05 00:36:16,632 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:16,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:16,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:16,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:16,633 INFO L87 Difference]: Start difference. First operand 5480 states and 14565 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:17,371 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:36:17,515 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:36:17,689 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:36:17,865 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:36:17,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:17,999 INFO L93 Difference]: Finished difference Result 13162 states and 34227 transitions. [2021-06-05 00:36:18,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:18,000 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:18,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:18,010 INFO L225 Difference]: With dead ends: 13162 [2021-06-05 00:36:18,011 INFO L226 Difference]: Without dead ends: 13162 [2021-06-05 00:36:18,011 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1233.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:18,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13162 states. [2021-06-05 00:36:18,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13162 to 5464. [2021-06-05 00:36:18,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5464 states, 5462 states have (on average 2.6581838154522153) internal successors, (14519), 5463 states have internal predecessors, (14519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:18,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5464 states to 5464 states and 14519 transitions. [2021-06-05 00:36:18,098 INFO L78 Accepts]: Start accepts. Automaton has 5464 states and 14519 transitions. Word has length 114 [2021-06-05 00:36:18,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:18,098 INFO L482 AbstractCegarLoop]: Abstraction has 5464 states and 14519 transitions. [2021-06-05 00:36:18,098 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:18,098 INFO L276 IsEmpty]: Start isEmpty. Operand 5464 states and 14519 transitions. [2021-06-05 00:36:18,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:18,101 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:18,102 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:18,102 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-06-05 00:36:18,102 INFO L430 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:18,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:18,102 INFO L82 PathProgramCache]: Analyzing trace with hash -994006254, now seen corresponding path program 52 times [2021-06-05 00:36:18,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:18,102 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593384310] [2021-06-05 00:36:18,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:18,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:18,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:18,410 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:18,410 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593384310] [2021-06-05 00:36:18,410 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593384310] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:18,410 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:18,410 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:18,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208066944] [2021-06-05 00:36:18,410 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:18,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:18,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:18,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:18,411 INFO L87 Difference]: Start difference. First operand 5464 states and 14519 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:19,123 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:36:19,270 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:36:19,439 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:36:19,618 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:36:19,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:19,766 INFO L93 Difference]: Finished difference Result 16368 states and 42341 transitions. [2021-06-05 00:36:19,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:19,767 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:19,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:19,781 INFO L225 Difference]: With dead ends: 16368 [2021-06-05 00:36:19,781 INFO L226 Difference]: Without dead ends: 16368 [2021-06-05 00:36:19,781 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1226.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:19,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16368 states. [2021-06-05 00:36:19,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16368 to 5480. [2021-06-05 00:36:19,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5480 states, 5478 states have (on average 2.6588170865279297) internal successors, (14565), 5479 states have internal predecessors, (14565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:19,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5480 states to 5480 states and 14565 transitions. [2021-06-05 00:36:19,894 INFO L78 Accepts]: Start accepts. Automaton has 5480 states and 14565 transitions. Word has length 114 [2021-06-05 00:36:19,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:19,894 INFO L482 AbstractCegarLoop]: Abstraction has 5480 states and 14565 transitions. [2021-06-05 00:36:19,894 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:19,894 INFO L276 IsEmpty]: Start isEmpty. Operand 5480 states and 14565 transitions. [2021-06-05 00:36:19,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:19,898 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:19,898 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:19,898 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-06-05 00:36:19,898 INFO L430 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:19,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:19,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1242553234, now seen corresponding path program 53 times [2021-06-05 00:36:19,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:19,898 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162021940] [2021-06-05 00:36:19,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:19,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:20,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:20,180 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:20,181 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162021940] [2021-06-05 00:36:20,181 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162021940] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:20,181 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:20,181 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:20,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390476392] [2021-06-05 00:36:20,181 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:20,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:20,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:20,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:20,181 INFO L87 Difference]: Start difference. First operand 5480 states and 14565 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:20,882 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:36:21,029 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:36:21,186 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:36:21,364 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:36:21,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:21,476 INFO L93 Difference]: Finished difference Result 13326 states and 34679 transitions. [2021-06-05 00:36:21,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:21,476 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:21,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:21,487 INFO L225 Difference]: With dead ends: 13326 [2021-06-05 00:36:21,488 INFO L226 Difference]: Without dead ends: 13326 [2021-06-05 00:36:21,488 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1213.7ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:21,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13326 states. [2021-06-05 00:36:21,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13326 to 5448. [2021-06-05 00:36:21,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5448 states, 5446 states have (on average 2.657546823356592) internal successors, (14473), 5447 states have internal predecessors, (14473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:21,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5448 states to 5448 states and 14473 transitions. [2021-06-05 00:36:21,571 INFO L78 Accepts]: Start accepts. Automaton has 5448 states and 14473 transitions. Word has length 114 [2021-06-05 00:36:21,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:21,572 INFO L482 AbstractCegarLoop]: Abstraction has 5448 states and 14473 transitions. [2021-06-05 00:36:21,572 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:21,572 INFO L276 IsEmpty]: Start isEmpty. Operand 5448 states and 14473 transitions. [2021-06-05 00:36:21,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:21,575 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:21,575 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:21,576 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-06-05 00:36:21,576 INFO L430 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:21,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:21,576 INFO L82 PathProgramCache]: Analyzing trace with hash 2032143756, now seen corresponding path program 54 times [2021-06-05 00:36:21,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:21,576 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640796808] [2021-06-05 00:36:21,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:21,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:21,894 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:21,894 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640796808] [2021-06-05 00:36:21,894 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640796808] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:21,895 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:21,895 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:21,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187486778] [2021-06-05 00:36:21,895 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:21,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:21,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:21,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:21,895 INFO L87 Difference]: Start difference. First operand 5448 states and 14473 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:22,617 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:36:22,767 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:36:22,932 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:36:23,106 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:36:23,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:23,220 INFO L93 Difference]: Finished difference Result 12446 states and 32552 transitions. [2021-06-05 00:36:23,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:23,221 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:23,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:23,231 INFO L225 Difference]: With dead ends: 12446 [2021-06-05 00:36:23,231 INFO L226 Difference]: Without dead ends: 12446 [2021-06-05 00:36:23,231 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1249.5ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:23,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12446 states. [2021-06-05 00:36:23,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12446 to 5492. [2021-06-05 00:36:23,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5492 states, 5490 states have (on average 2.6595628415300547) internal successors, (14601), 5491 states have internal predecessors, (14601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:23,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5492 states to 5492 states and 14601 transitions. [2021-06-05 00:36:23,311 INFO L78 Accepts]: Start accepts. Automaton has 5492 states and 14601 transitions. Word has length 114 [2021-06-05 00:36:23,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:23,311 INFO L482 AbstractCegarLoop]: Abstraction has 5492 states and 14601 transitions. [2021-06-05 00:36:23,311 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:23,311 INFO L276 IsEmpty]: Start isEmpty. Operand 5492 states and 14601 transitions. [2021-06-05 00:36:23,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:23,315 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:23,315 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:23,315 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-06-05 00:36:23,315 INFO L430 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:23,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:23,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1783596776, now seen corresponding path program 55 times [2021-06-05 00:36:23,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:23,315 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804153335] [2021-06-05 00:36:23,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:23,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:23,606 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:23,606 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804153335] [2021-06-05 00:36:23,606 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804153335] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:23,606 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:23,606 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:23,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440499875] [2021-06-05 00:36:23,606 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:23,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:23,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:23,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:23,607 INFO L87 Difference]: Start difference. First operand 5492 states and 14601 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:24,284 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:36:24,437 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:36:24,594 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:36:24,772 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:36:24,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:24,880 INFO L93 Difference]: Finished difference Result 12282 states and 32150 transitions. [2021-06-05 00:36:24,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:24,881 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:24,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:24,890 INFO L225 Difference]: With dead ends: 12282 [2021-06-05 00:36:24,890 INFO L226 Difference]: Without dead ends: 12282 [2021-06-05 00:36:24,891 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1204.5ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:24,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12282 states. [2021-06-05 00:36:24,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12282 to 5476. [2021-06-05 00:36:24,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5476 states, 5474 states have (on average 2.6589331384727806) internal successors, (14555), 5475 states have internal predecessors, (14555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:24,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5476 states to 5476 states and 14555 transitions. [2021-06-05 00:36:24,969 INFO L78 Accepts]: Start accepts. Automaton has 5476 states and 14555 transitions. Word has length 114 [2021-06-05 00:36:24,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:24,970 INFO L482 AbstractCegarLoop]: Abstraction has 5476 states and 14555 transitions. [2021-06-05 00:36:24,970 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:24,970 INFO L276 IsEmpty]: Start isEmpty. Operand 5476 states and 14555 transitions. [2021-06-05 00:36:24,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:24,973 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:24,973 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:24,974 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-06-05 00:36:24,974 INFO L430 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:24,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:24,974 INFO L82 PathProgramCache]: Analyzing trace with hash 626779472, now seen corresponding path program 56 times [2021-06-05 00:36:24,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:24,974 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550916411] [2021-06-05 00:36:24,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:24,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:25,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:25,305 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:25,305 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550916411] [2021-06-05 00:36:25,305 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550916411] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:25,305 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:25,305 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:25,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93938466] [2021-06-05 00:36:25,305 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:25,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:25,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:25,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:25,306 INFO L87 Difference]: Start difference. First operand 5476 states and 14555 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:26,003 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:36:26,138 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:36:26,307 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:36:26,487 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:36:26,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:26,607 INFO L93 Difference]: Finished difference Result 9640 states and 25472 transitions. [2021-06-05 00:36:26,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:26,607 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:26,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:26,614 INFO L225 Difference]: With dead ends: 9640 [2021-06-05 00:36:26,614 INFO L226 Difference]: Without dead ends: 9640 [2021-06-05 00:36:26,614 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1234.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:26,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9640 states. [2021-06-05 00:36:26,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9640 to 5644. [2021-06-05 00:36:26,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5644 states, 5642 states have (on average 2.6669620701878767) internal successors, (15047), 5643 states have internal predecessors, (15047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:26,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5644 states to 5644 states and 15047 transitions. [2021-06-05 00:36:26,684 INFO L78 Accepts]: Start accepts. Automaton has 5644 states and 15047 transitions. Word has length 114 [2021-06-05 00:36:26,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:26,684 INFO L482 AbstractCegarLoop]: Abstraction has 5644 states and 15047 transitions. [2021-06-05 00:36:26,684 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:26,684 INFO L276 IsEmpty]: Start isEmpty. Operand 5644 states and 15047 transitions. [2021-06-05 00:36:26,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:26,688 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:26,688 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:26,688 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-06-05 00:36:26,688 INFO L430 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:26,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:26,689 INFO L82 PathProgramCache]: Analyzing trace with hash 451863608, now seen corresponding path program 57 times [2021-06-05 00:36:26,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:26,689 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608313284] [2021-06-05 00:36:26,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:26,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:26,992 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:26,992 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608313284] [2021-06-05 00:36:26,992 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608313284] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:26,992 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:26,993 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 00:36:26,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858026026] [2021-06-05 00:36:26,993 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 00:36:26,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:26,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 00:36:26,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:36:26,994 INFO L87 Difference]: Start difference. First operand 5644 states and 15047 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:28,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:28,059 INFO L93 Difference]: Finished difference Result 7307 states and 18489 transitions. [2021-06-05 00:36:28,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 00:36:28,060 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:28,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:28,066 INFO L225 Difference]: With dead ends: 7307 [2021-06-05 00:36:28,066 INFO L226 Difference]: Without dead ends: 7307 [2021-06-05 00:36:28,066 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 923.2ms TimeCoverageRelationStatistics Valid=338, Invalid=922, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 00:36:28,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7307 states. [2021-06-05 00:36:28,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7307 to 5660. [2021-06-05 00:36:28,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5660 states, 5658 states have (on average 2.667903852951573) internal successors, (15095), 5659 states have internal predecessors, (15095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:28,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5660 states to 5660 states and 15095 transitions. [2021-06-05 00:36:28,143 INFO L78 Accepts]: Start accepts. Automaton has 5660 states and 15095 transitions. Word has length 114 [2021-06-05 00:36:28,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:28,143 INFO L482 AbstractCegarLoop]: Abstraction has 5660 states and 15095 transitions. [2021-06-05 00:36:28,143 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:28,143 INFO L276 IsEmpty]: Start isEmpty. Operand 5660 states and 15095 transitions. [2021-06-05 00:36:28,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:28,147 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:28,147 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:28,147 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-06-05 00:36:28,147 INFO L430 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:28,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:28,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1771335568, now seen corresponding path program 58 times [2021-06-05 00:36:28,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:28,148 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875055193] [2021-06-05 00:36:28,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:28,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:28,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:28,438 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:28,438 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875055193] [2021-06-05 00:36:28,438 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875055193] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:28,438 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:28,438 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:28,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408277205] [2021-06-05 00:36:28,438 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:28,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:28,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:28,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:28,439 INFO L87 Difference]: Start difference. First operand 5660 states and 15095 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:29,151 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:36:29,289 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:36:29,463 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:36:29,645 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:36:29,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:29,798 INFO L93 Difference]: Finished difference Result 15290 states and 39901 transitions. [2021-06-05 00:36:29,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:29,798 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:29,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:29,811 INFO L225 Difference]: With dead ends: 15290 [2021-06-05 00:36:29,811 INFO L226 Difference]: Without dead ends: 15290 [2021-06-05 00:36:29,811 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1197.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:29,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15290 states. [2021-06-05 00:36:29,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15290 to 5744. [2021-06-05 00:36:29,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5744 states, 5742 states have (on average 2.6717171717171717) internal successors, (15341), 5743 states have internal predecessors, (15341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:29,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5744 states to 5744 states and 15341 transitions. [2021-06-05 00:36:29,909 INFO L78 Accepts]: Start accepts. Automaton has 5744 states and 15341 transitions. Word has length 114 [2021-06-05 00:36:29,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:29,909 INFO L482 AbstractCegarLoop]: Abstraction has 5744 states and 15341 transitions. [2021-06-05 00:36:29,909 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:29,909 INFO L276 IsEmpty]: Start isEmpty. Operand 5744 states and 15341 transitions. [2021-06-05 00:36:29,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:29,913 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:29,913 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:29,913 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-06-05 00:36:29,913 INFO L430 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:29,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:29,914 INFO L82 PathProgramCache]: Analyzing trace with hash -610394992, now seen corresponding path program 59 times [2021-06-05 00:36:29,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:29,914 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504532816] [2021-06-05 00:36:29,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:30,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:30,210 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:30,210 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504532816] [2021-06-05 00:36:30,210 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504532816] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:30,210 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:30,210 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:30,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071393758] [2021-06-05 00:36:30,211 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:30,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:30,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:30,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:30,211 INFO L87 Difference]: Start difference. First operand 5744 states and 15341 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:30,804 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-06-05 00:36:30,936 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:36:31,097 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:36:31,256 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:36:31,438 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:36:31,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:31,594 INFO L93 Difference]: Finished difference Result 17860 states and 46495 transitions. [2021-06-05 00:36:31,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:31,594 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:31,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:31,610 INFO L225 Difference]: With dead ends: 17860 [2021-06-05 00:36:31,610 INFO L226 Difference]: Without dead ends: 17860 [2021-06-05 00:36:31,611 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1229.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:31,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17860 states. [2021-06-05 00:36:31,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17860 to 5758. [2021-06-05 00:36:31,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5758 states, 5756 states have (on average 2.6723419041000693) internal successors, (15382), 5757 states have internal predecessors, (15382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:31,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5758 states to 5758 states and 15382 transitions. [2021-06-05 00:36:31,729 INFO L78 Accepts]: Start accepts. Automaton has 5758 states and 15382 transitions. Word has length 114 [2021-06-05 00:36:31,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:31,729 INFO L482 AbstractCegarLoop]: Abstraction has 5758 states and 15382 transitions. [2021-06-05 00:36:31,729 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:31,729 INFO L276 IsEmpty]: Start isEmpty. Operand 5758 states and 15382 transitions. [2021-06-05 00:36:31,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:31,733 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:31,733 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:31,733 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-06-05 00:36:31,733 INFO L430 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:31,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:31,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1525079630, now seen corresponding path program 60 times [2021-06-05 00:36:31,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:31,734 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481759065] [2021-06-05 00:36:31,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:32,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:32,034 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:32,034 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481759065] [2021-06-05 00:36:32,035 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481759065] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:32,035 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:32,035 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:32,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582530440] [2021-06-05 00:36:32,035 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:32,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:32,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:32,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:32,035 INFO L87 Difference]: Start difference. First operand 5758 states and 15382 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:32,610 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-06-05 00:36:32,764 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:36:32,921 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:36:33,090 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:36:33,266 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:36:33,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:33,411 INFO L93 Difference]: Finished difference Result 16115 states and 41789 transitions. [2021-06-05 00:36:33,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:33,411 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:33,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:33,427 INFO L225 Difference]: With dead ends: 16115 [2021-06-05 00:36:33,427 INFO L226 Difference]: Without dead ends: 16115 [2021-06-05 00:36:33,427 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1256.7ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:33,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16115 states. [2021-06-05 00:36:33,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16115 to 5716. [2021-06-05 00:36:33,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5716 states, 5714 states have (on average 2.6704585229261464) internal successors, (15259), 5715 states have internal predecessors, (15259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:33,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5716 states to 5716 states and 15259 transitions. [2021-06-05 00:36:33,554 INFO L78 Accepts]: Start accepts. Automaton has 5716 states and 15259 transitions. Word has length 114 [2021-06-05 00:36:33,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:33,554 INFO L482 AbstractCegarLoop]: Abstraction has 5716 states and 15259 transitions. [2021-06-05 00:36:33,554 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:33,554 INFO L276 IsEmpty]: Start isEmpty. Operand 5716 states and 15259 transitions. [2021-06-05 00:36:33,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:33,558 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:33,558 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:33,558 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-06-05 00:36:33,558 INFO L430 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:33,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:33,559 INFO L82 PathProgramCache]: Analyzing trace with hash -288648368, now seen corresponding path program 61 times [2021-06-05 00:36:33,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:33,559 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263746021] [2021-06-05 00:36:33,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:33,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:33,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:33,862 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:33,862 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263746021] [2021-06-05 00:36:33,862 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263746021] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:33,862 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:33,862 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:33,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539907327] [2021-06-05 00:36:33,862 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:33,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:33,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:33,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:33,863 INFO L87 Difference]: Start difference. First operand 5716 states and 15259 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:34,609 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:36:34,755 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:36:34,915 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:36:35,117 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:36:35,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:35,270 INFO L93 Difference]: Finished difference Result 15390 states and 40061 transitions. [2021-06-05 00:36:35,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:35,270 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:35,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:35,283 INFO L225 Difference]: With dead ends: 15390 [2021-06-05 00:36:35,284 INFO L226 Difference]: Without dead ends: 15390 [2021-06-05 00:36:35,284 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1255.5ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:35,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15390 states. [2021-06-05 00:36:35,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15390 to 5744. [2021-06-05 00:36:35,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5744 states, 5742 states have (on average 2.6717171717171717) internal successors, (15341), 5743 states have internal predecessors, (15341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:35,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5744 states to 5744 states and 15341 transitions. [2021-06-05 00:36:35,379 INFO L78 Accepts]: Start accepts. Automaton has 5744 states and 15341 transitions. Word has length 114 [2021-06-05 00:36:35,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:35,379 INFO L482 AbstractCegarLoop]: Abstraction has 5744 states and 15341 transitions. [2021-06-05 00:36:35,379 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:35,379 INFO L276 IsEmpty]: Start isEmpty. Operand 5744 states and 15341 transitions. [2021-06-05 00:36:35,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:35,383 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:35,384 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:35,384 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-06-05 00:36:35,384 INFO L430 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:35,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:35,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1846826254, now seen corresponding path program 62 times [2021-06-05 00:36:35,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:35,384 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69607797] [2021-06-05 00:36:35,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:35,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:35,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:35,682 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:35,682 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69607797] [2021-06-05 00:36:35,682 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69607797] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:35,682 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:35,682 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:35,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475883060] [2021-06-05 00:36:35,682 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:35,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:35,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:35,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:35,683 INFO L87 Difference]: Start difference. First operand 5744 states and 15341 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:36,406 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:36:36,549 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:36:36,721 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:36:36,896 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:36:37,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:37,036 INFO L93 Difference]: Finished difference Result 16151 states and 41783 transitions. [2021-06-05 00:36:37,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:37,037 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:37,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:37,051 INFO L225 Difference]: With dead ends: 16151 [2021-06-05 00:36:37,051 INFO L226 Difference]: Without dead ends: 16151 [2021-06-05 00:36:37,051 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1234.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:37,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16151 states. [2021-06-05 00:36:37,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16151 to 5730. [2021-06-05 00:36:37,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5730 states, 5728 states have (on average 2.6710893854748603) internal successors, (15300), 5729 states have internal predecessors, (15300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:37,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5730 states to 5730 states and 15300 transitions. [2021-06-05 00:36:37,148 INFO L78 Accepts]: Start accepts. Automaton has 5730 states and 15300 transitions. Word has length 114 [2021-06-05 00:36:37,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:37,148 INFO L482 AbstractCegarLoop]: Abstraction has 5730 states and 15300 transitions. [2021-06-05 00:36:37,148 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:37,148 INFO L276 IsEmpty]: Start isEmpty. Operand 5730 states and 15300 transitions. [2021-06-05 00:36:37,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:37,152 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:37,152 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:37,152 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-06-05 00:36:37,152 INFO L430 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:37,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:37,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1650277582, now seen corresponding path program 63 times [2021-06-05 00:36:37,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:37,152 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881226163] [2021-06-05 00:36:37,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:37,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:37,435 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:37,435 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881226163] [2021-06-05 00:36:37,435 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881226163] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:37,435 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:37,435 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:37,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733414302] [2021-06-05 00:36:37,435 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:37,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:37,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:37,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:37,436 INFO L87 Difference]: Start difference. First operand 5730 states and 15300 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:38,128 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:36:38,272 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:36:38,438 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:36:38,612 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:36:38,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:38,745 INFO L93 Difference]: Finished difference Result 15534 states and 40299 transitions. [2021-06-05 00:36:38,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:38,745 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:38,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:38,758 INFO L225 Difference]: With dead ends: 15534 [2021-06-05 00:36:38,758 INFO L226 Difference]: Without dead ends: 15534 [2021-06-05 00:36:38,758 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1211.7ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:38,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15534 states. [2021-06-05 00:36:38,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15534 to 5744. [2021-06-05 00:36:38,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5744 states, 5742 states have (on average 2.6717171717171717) internal successors, (15341), 5743 states have internal predecessors, (15341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:38,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5744 states to 5744 states and 15341 transitions. [2021-06-05 00:36:38,855 INFO L78 Accepts]: Start accepts. Automaton has 5744 states and 15341 transitions. Word has length 114 [2021-06-05 00:36:38,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:38,855 INFO L482 AbstractCegarLoop]: Abstraction has 5744 states and 15341 transitions. [2021-06-05 00:36:38,855 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:38,855 INFO L276 IsEmpty]: Start isEmpty. Operand 5744 states and 15341 transitions. [2021-06-05 00:36:38,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:38,859 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:38,859 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:38,859 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-06-05 00:36:38,859 INFO L430 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:38,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:38,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1898824562, now seen corresponding path program 64 times [2021-06-05 00:36:38,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:38,859 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307049014] [2021-06-05 00:36:38,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:39,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:39,185 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:39,185 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307049014] [2021-06-05 00:36:39,185 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307049014] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:39,185 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:39,185 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:39,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256962716] [2021-06-05 00:36:39,185 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:39,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:39,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:39,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:39,186 INFO L87 Difference]: Start difference. First operand 5744 states and 15341 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:39,871 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:36:40,014 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:36:40,169 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:36:40,344 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:36:40,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:40,469 INFO L93 Difference]: Finished difference Result 12920 states and 33665 transitions. [2021-06-05 00:36:40,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:40,469 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:40,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:40,480 INFO L225 Difference]: With dead ends: 12920 [2021-06-05 00:36:40,480 INFO L226 Difference]: Without dead ends: 12920 [2021-06-05 00:36:40,480 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1191.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:40,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12920 states. [2021-06-05 00:36:40,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12920 to 5688. [2021-06-05 00:36:40,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5688 states, 5686 states have (on average 2.66918747801618) internal successors, (15177), 5687 states have internal predecessors, (15177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:40,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5688 states to 5688 states and 15177 transitions. [2021-06-05 00:36:40,561 INFO L78 Accepts]: Start accepts. Automaton has 5688 states and 15177 transitions. Word has length 114 [2021-06-05 00:36:40,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:40,561 INFO L482 AbstractCegarLoop]: Abstraction has 5688 states and 15177 transitions. [2021-06-05 00:36:40,561 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:40,561 INFO L276 IsEmpty]: Start isEmpty. Operand 5688 states and 15177 transitions. [2021-06-05 00:36:40,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:40,565 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:40,565 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:40,565 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-06-05 00:36:40,565 INFO L430 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:40,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:40,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1676657330, now seen corresponding path program 65 times [2021-06-05 00:36:40,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:40,566 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219680178] [2021-06-05 00:36:40,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:40,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:40,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:40,893 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:40,893 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219680178] [2021-06-05 00:36:40,893 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219680178] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:40,893 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:40,893 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:40,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168464610] [2021-06-05 00:36:40,894 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:40,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:40,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:40,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:40,894 INFO L87 Difference]: Start difference. First operand 5688 states and 15177 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:41,582 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:36:41,719 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:36:41,910 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:36:42,092 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:36:42,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:42,250 INFO L93 Difference]: Finished difference Result 18003 states and 47073 transitions. [2021-06-05 00:36:42,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:42,250 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:42,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:42,267 INFO L225 Difference]: With dead ends: 18003 [2021-06-05 00:36:42,267 INFO L226 Difference]: Without dead ends: 18003 [2021-06-05 00:36:42,267 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1236.9ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:42,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18003 states. [2021-06-05 00:36:42,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18003 to 5730. [2021-06-05 00:36:42,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5730 states, 5728 states have (on average 2.6710893854748603) internal successors, (15300), 5729 states have internal predecessors, (15300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:42,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5730 states to 5730 states and 15300 transitions. [2021-06-05 00:36:42,374 INFO L78 Accepts]: Start accepts. Automaton has 5730 states and 15300 transitions. Word has length 114 [2021-06-05 00:36:42,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:42,374 INFO L482 AbstractCegarLoop]: Abstraction has 5730 states and 15300 transitions. [2021-06-05 00:36:42,374 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:42,374 INFO L276 IsEmpty]: Start isEmpty. Operand 5730 states and 15300 transitions. [2021-06-05 00:36:42,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:42,378 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:42,378 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:42,378 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-06-05 00:36:42,378 INFO L430 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:42,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:42,379 INFO L82 PathProgramCache]: Analyzing trace with hash -705073230, now seen corresponding path program 66 times [2021-06-05 00:36:42,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:42,379 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147386467] [2021-06-05 00:36:42,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:42,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:42,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:42,701 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:42,701 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147386467] [2021-06-05 00:36:42,701 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147386467] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:42,701 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:42,701 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:42,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793127527] [2021-06-05 00:36:42,701 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:42,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:42,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:42,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:42,702 INFO L87 Difference]: Start difference. First operand 5730 states and 15300 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:43,416 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:36:43,583 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:36:43,747 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:36:43,931 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:36:44,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:44,098 INFO L93 Difference]: Finished difference Result 18091 states and 47239 transitions. [2021-06-05 00:36:44,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:44,098 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:44,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:44,114 INFO L225 Difference]: With dead ends: 18091 [2021-06-05 00:36:44,115 INFO L226 Difference]: Without dead ends: 18091 [2021-06-05 00:36:44,115 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1241.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:44,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18091 states. [2021-06-05 00:36:44,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18091 to 5744. [2021-06-05 00:36:44,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5744 states, 5742 states have (on average 2.6717171717171717) internal successors, (15341), 5743 states have internal predecessors, (15341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:44,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5744 states to 5744 states and 15341 transitions. [2021-06-05 00:36:44,222 INFO L78 Accepts]: Start accepts. Automaton has 5744 states and 15341 transitions. Word has length 114 [2021-06-05 00:36:44,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:44,222 INFO L482 AbstractCegarLoop]: Abstraction has 5744 states and 15341 transitions. [2021-06-05 00:36:44,222 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:44,222 INFO L276 IsEmpty]: Start isEmpty. Operand 5744 states and 15341 transitions. [2021-06-05 00:36:44,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:44,226 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:44,226 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:44,226 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-06-05 00:36:44,227 INFO L430 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:44,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:44,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1430401392, now seen corresponding path program 67 times [2021-06-05 00:36:44,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:44,227 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408317629] [2021-06-05 00:36:44,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:44,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:44,576 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:44,576 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408317629] [2021-06-05 00:36:44,576 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408317629] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:44,576 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:44,576 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:44,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726696422] [2021-06-05 00:36:44,577 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:44,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:44,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:44,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:44,577 INFO L87 Difference]: Start difference. First operand 5744 states and 15341 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:45,284 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:36:45,451 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:36:45,627 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:36:45,812 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:36:45,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:45,981 INFO L93 Difference]: Finished difference Result 17507 states and 45357 transitions. [2021-06-05 00:36:45,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:45,981 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:45,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:45,997 INFO L225 Difference]: With dead ends: 17507 [2021-06-05 00:36:45,997 INFO L226 Difference]: Without dead ends: 17507 [2021-06-05 00:36:45,997 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1273.7ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:46,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17507 states. [2021-06-05 00:36:46,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17507 to 5702. [2021-06-05 00:36:46,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5702 states, 5700 states have (on average 2.6698245614035088) internal successors, (15218), 5701 states have internal predecessors, (15218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:46,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5702 states to 5702 states and 15218 transitions. [2021-06-05 00:36:46,100 INFO L78 Accepts]: Start accepts. Automaton has 5702 states and 15218 transitions. Word has length 114 [2021-06-05 00:36:46,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:46,100 INFO L482 AbstractCegarLoop]: Abstraction has 5702 states and 15218 transitions. [2021-06-05 00:36:46,100 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:46,100 INFO L276 IsEmpty]: Start isEmpty. Operand 5702 states and 15218 transitions. [2021-06-05 00:36:46,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:46,104 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:46,104 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:46,104 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-06-05 00:36:46,104 INFO L430 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:46,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:46,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1297840016, now seen corresponding path program 68 times [2021-06-05 00:36:46,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:46,104 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30238723] [2021-06-05 00:36:46,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:46,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:46,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:46,437 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:46,437 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30238723] [2021-06-05 00:36:46,437 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30238723] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:46,437 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:46,437 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:46,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112941090] [2021-06-05 00:36:46,438 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:46,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:46,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:46,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:46,438 INFO L87 Difference]: Start difference. First operand 5702 states and 15218 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:47,276 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:36:47,458 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:36:47,641 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:36:47,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:47,772 INFO L93 Difference]: Finished difference Result 14049 states and 36543 transitions. [2021-06-05 00:36:47,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:47,772 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:47,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:47,784 INFO L225 Difference]: With dead ends: 14049 [2021-06-05 00:36:47,784 INFO L226 Difference]: Without dead ends: 14049 [2021-06-05 00:36:47,784 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1245.8ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:47,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14049 states. [2021-06-05 00:36:47,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14049 to 5674. [2021-06-05 00:36:47,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5674 states, 5672 states have (on average 2.6685472496473905) internal successors, (15136), 5673 states have internal predecessors, (15136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:47,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5674 states to 5674 states and 15136 transitions. [2021-06-05 00:36:47,876 INFO L78 Accepts]: Start accepts. Automaton has 5674 states and 15136 transitions. Word has length 114 [2021-06-05 00:36:47,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:47,876 INFO L482 AbstractCegarLoop]: Abstraction has 5674 states and 15136 transitions. [2021-06-05 00:36:47,876 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:47,876 INFO L276 IsEmpty]: Start isEmpty. Operand 5674 states and 15136 transitions. [2021-06-05 00:36:47,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:47,881 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:47,881 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:47,881 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-06-05 00:36:47,881 INFO L430 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:47,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:47,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1270755022, now seen corresponding path program 69 times [2021-06-05 00:36:47,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:47,882 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24571963] [2021-06-05 00:36:47,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:48,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:48,210 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:48,210 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24571963] [2021-06-05 00:36:48,210 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24571963] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:48,210 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:48,210 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:48,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299703411] [2021-06-05 00:36:48,210 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:48,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:48,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:48,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:48,211 INFO L87 Difference]: Start difference. First operand 5674 states and 15136 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:48,906 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:36:49,044 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:36:49,220 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:36:49,400 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:36:49,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:49,538 INFO L93 Difference]: Finished difference Result 13368 states and 35129 transitions. [2021-06-05 00:36:49,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:49,538 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:49,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:49,551 INFO L225 Difference]: With dead ends: 13368 [2021-06-05 00:36:49,551 INFO L226 Difference]: Without dead ends: 13368 [2021-06-05 00:36:49,551 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1235.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:49,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13368 states. [2021-06-05 00:36:49,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13368 to 5730. [2021-06-05 00:36:49,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5730 states, 5728 states have (on average 2.6710893854748603) internal successors, (15300), 5729 states have internal predecessors, (15300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:49,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5730 states to 5730 states and 15300 transitions. [2021-06-05 00:36:49,637 INFO L78 Accepts]: Start accepts. Automaton has 5730 states and 15300 transitions. Word has length 114 [2021-06-05 00:36:49,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:49,637 INFO L482 AbstractCegarLoop]: Abstraction has 5730 states and 15300 transitions. [2021-06-05 00:36:49,637 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:49,637 INFO L276 IsEmpty]: Start isEmpty. Operand 5730 states and 15300 transitions. [2021-06-05 00:36:49,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:49,642 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:49,642 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:49,642 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-06-05 00:36:49,642 INFO L430 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:49,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:49,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1110975538, now seen corresponding path program 70 times [2021-06-05 00:36:49,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:49,642 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790568753] [2021-06-05 00:36:49,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:49,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:49,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:49,986 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:49,986 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790568753] [2021-06-05 00:36:49,986 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790568753] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:49,986 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:49,986 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:49,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486806246] [2021-06-05 00:36:49,986 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:49,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:49,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:49,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:49,987 INFO L87 Difference]: Start difference. First operand 5730 states and 15300 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:50,691 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:36:50,855 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:36:51,015 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:36:51,196 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:36:51,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:51,340 INFO L93 Difference]: Finished difference Result 13456 states and 35295 transitions. [2021-06-05 00:36:51,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:51,340 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:51,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:51,352 INFO L225 Difference]: With dead ends: 13456 [2021-06-05 00:36:51,352 INFO L226 Difference]: Without dead ends: 13456 [2021-06-05 00:36:51,352 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1256.7ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:51,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13456 states. [2021-06-05 00:36:51,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13456 to 5744. [2021-06-05 00:36:51,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5744 states, 5742 states have (on average 2.6717171717171717) internal successors, (15341), 5743 states have internal predecessors, (15341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:51,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5744 states to 5744 states and 15341 transitions. [2021-06-05 00:36:51,438 INFO L78 Accepts]: Start accepts. Automaton has 5744 states and 15341 transitions. Word has length 114 [2021-06-05 00:36:51,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:51,438 INFO L482 AbstractCegarLoop]: Abstraction has 5744 states and 15341 transitions. [2021-06-05 00:36:51,438 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:51,438 INFO L276 IsEmpty]: Start isEmpty. Operand 5744 states and 15341 transitions. [2021-06-05 00:36:51,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:51,442 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:51,442 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:51,442 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-06-05 00:36:51,443 INFO L430 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:51,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:51,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1024499084, now seen corresponding path program 71 times [2021-06-05 00:36:51,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:51,443 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375824233] [2021-06-05 00:36:51,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:51,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:51,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:51,763 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:51,763 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375824233] [2021-06-05 00:36:51,763 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375824233] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:51,763 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:51,763 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:51,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634707501] [2021-06-05 00:36:51,763 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:51,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:51,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:51,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:51,764 INFO L87 Difference]: Start difference. First operand 5744 states and 15341 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:52,468 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:36:52,631 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:36:52,819 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:36:52,998 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:36:53,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:53,142 INFO L93 Difference]: Finished difference Result 12872 states and 33413 transitions. [2021-06-05 00:36:53,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:53,143 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:53,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:53,154 INFO L225 Difference]: With dead ends: 12872 [2021-06-05 00:36:53,155 INFO L226 Difference]: Without dead ends: 12872 [2021-06-05 00:36:53,155 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1253.5ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:53,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12872 states. [2021-06-05 00:36:53,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12872 to 5702. [2021-06-05 00:36:53,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5702 states, 5700 states have (on average 2.6698245614035088) internal successors, (15218), 5701 states have internal predecessors, (15218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:53,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5702 states to 5702 states and 15218 transitions. [2021-06-05 00:36:53,239 INFO L78 Accepts]: Start accepts. Automaton has 5702 states and 15218 transitions. Word has length 114 [2021-06-05 00:36:53,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:53,239 INFO L482 AbstractCegarLoop]: Abstraction has 5702 states and 15218 transitions. [2021-06-05 00:36:53,239 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:53,239 INFO L276 IsEmpty]: Start isEmpty. Operand 5702 states and 15218 transitions. [2021-06-05 00:36:53,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:53,243 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:53,243 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:53,243 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-06-05 00:36:53,243 INFO L430 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:53,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:53,243 INFO L82 PathProgramCache]: Analyzing trace with hash 891937708, now seen corresponding path program 72 times [2021-06-05 00:36:53,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:53,244 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447572590] [2021-06-05 00:36:53,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:53,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:53,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:53,566 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:53,566 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447572590] [2021-06-05 00:36:53,566 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447572590] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:53,566 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:53,566 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:53,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316270652] [2021-06-05 00:36:53,567 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:53,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:53,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:53,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:53,567 INFO L87 Difference]: Start difference. First operand 5702 states and 15218 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:54,391 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:36:54,571 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:36:54,755 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:36:54,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:54,882 INFO L93 Difference]: Finished difference Result 12924 states and 33679 transitions. [2021-06-05 00:36:54,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:54,883 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:54,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:54,894 INFO L225 Difference]: With dead ends: 12924 [2021-06-05 00:36:54,894 INFO L226 Difference]: Without dead ends: 12924 [2021-06-05 00:36:54,894 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1215.7ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:54,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12924 states. [2021-06-05 00:36:54,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12924 to 5688. [2021-06-05 00:36:54,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5688 states, 5686 states have (on average 2.66918747801618) internal successors, (15177), 5687 states have internal predecessors, (15177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:54,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5688 states to 5688 states and 15177 transitions. [2021-06-05 00:36:54,976 INFO L78 Accepts]: Start accepts. Automaton has 5688 states and 15177 transitions. Word has length 114 [2021-06-05 00:36:54,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:54,976 INFO L482 AbstractCegarLoop]: Abstraction has 5688 states and 15177 transitions. [2021-06-05 00:36:54,976 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:54,976 INFO L276 IsEmpty]: Start isEmpty. Operand 5688 states and 15177 transitions. [2021-06-05 00:36:54,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:54,980 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:54,980 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:54,980 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-06-05 00:36:54,980 INFO L430 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:54,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:54,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1232182066, now seen corresponding path program 73 times [2021-06-05 00:36:54,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:54,980 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258578394] [2021-06-05 00:36:54,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:54,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:55,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:55,305 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:55,305 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258578394] [2021-06-05 00:36:55,305 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258578394] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:55,305 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:55,305 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:55,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519353424] [2021-06-05 00:36:55,305 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:55,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:55,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:55,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:55,306 INFO L87 Difference]: Start difference. First operand 5688 states and 15177 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:56,136 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:36:56,313 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:36:56,495 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:36:56,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:56,607 INFO L93 Difference]: Finished difference Result 9350 states and 24433 transitions. [2021-06-05 00:36:56,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:56,607 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:56,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:56,614 INFO L225 Difference]: With dead ends: 9350 [2021-06-05 00:36:56,614 INFO L226 Difference]: Without dead ends: 9350 [2021-06-05 00:36:56,615 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1215.3ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:56,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9350 states. [2021-06-05 00:36:56,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9350 to 5660. [2021-06-05 00:36:56,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5660 states, 5658 states have (on average 2.667903852951573) internal successors, (15095), 5659 states have internal predecessors, (15095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:56,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5660 states to 5660 states and 15095 transitions. [2021-06-05 00:36:56,683 INFO L78 Accepts]: Start accepts. Automaton has 5660 states and 15095 transitions. Word has length 114 [2021-06-05 00:36:56,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:56,683 INFO L482 AbstractCegarLoop]: Abstraction has 5660 states and 15095 transitions. [2021-06-05 00:36:56,683 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:56,684 INFO L276 IsEmpty]: Start isEmpty. Operand 5660 states and 15095 transitions. [2021-06-05 00:36:56,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:56,687 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:56,687 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:56,688 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-06-05 00:36:56,688 INFO L430 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:56,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:56,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1708873166, now seen corresponding path program 74 times [2021-06-05 00:36:56,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:56,688 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345565800] [2021-06-05 00:36:56,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:56,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:57,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:57,002 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:57,002 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345565800] [2021-06-05 00:36:57,002 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345565800] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:57,002 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:57,002 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:57,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129173721] [2021-06-05 00:36:57,002 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:57,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:57,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:57,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:57,003 INFO L87 Difference]: Start difference. First operand 5660 states and 15095 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:57,707 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:36:57,843 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:36:58,013 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:36:58,193 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:36:58,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:58,376 INFO L93 Difference]: Finished difference Result 24417 states and 64144 transitions. [2021-06-05 00:36:58,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:36:58,376 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:36:58,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:58,393 INFO L225 Difference]: With dead ends: 24417 [2021-06-05 00:36:58,393 INFO L226 Difference]: Without dead ends: 24417 [2021-06-05 00:36:58,393 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1228.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:36:58,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24417 states. [2021-06-05 00:36:58,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24417 to 5818. [2021-06-05 00:36:58,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5818 states, 5816 states have (on average 2.673658872077029) internal successors, (15550), 5817 states have internal predecessors, (15550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:58,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5818 states to 5818 states and 15550 transitions. [2021-06-05 00:36:58,516 INFO L78 Accepts]: Start accepts. Automaton has 5818 states and 15550 transitions. Word has length 114 [2021-06-05 00:36:58,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:58,517 INFO L482 AbstractCegarLoop]: Abstraction has 5818 states and 15550 transitions. [2021-06-05 00:36:58,517 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:58,517 INFO L276 IsEmpty]: Start isEmpty. Operand 5818 states and 15550 transitions. [2021-06-05 00:36:58,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:36:58,521 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:58,521 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:58,521 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-06-05 00:36:58,521 INFO L430 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:58,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:58,521 INFO L82 PathProgramCache]: Analyzing trace with hash -672857394, now seen corresponding path program 75 times [2021-06-05 00:36:58,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:58,521 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883303361] [2021-06-05 00:36:58,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:58,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:58,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:58,815 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:58,815 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883303361] [2021-06-05 00:36:58,815 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883303361] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:58,815 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:58,815 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:36:58,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704284545] [2021-06-05 00:36:58,815 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:36:58,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:58,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:36:58,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:36:58,815 INFO L87 Difference]: Start difference. First operand 5818 states and 15550 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:59,503 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:36:59,658 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:36:59,813 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:36:59,992 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:37:00,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:00,153 INFO L93 Difference]: Finished difference Result 27041 states and 70867 transitions. [2021-06-05 00:37:00,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:00,154 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:00,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:00,178 INFO L225 Difference]: With dead ends: 27041 [2021-06-05 00:37:00,178 INFO L226 Difference]: Without dead ends: 27041 [2021-06-05 00:37:00,179 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1202.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:00,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27041 states. [2021-06-05 00:37:00,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27041 to 5834. [2021-06-05 00:37:00,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5834 states, 5832 states have (on average 2.674211248285322) internal successors, (15596), 5833 states have internal predecessors, (15596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:00,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5834 states to 5834 states and 15596 transitions. [2021-06-05 00:37:00,328 INFO L78 Accepts]: Start accepts. Automaton has 5834 states and 15596 transitions. Word has length 114 [2021-06-05 00:37:00,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:00,329 INFO L482 AbstractCegarLoop]: Abstraction has 5834 states and 15596 transitions. [2021-06-05 00:37:00,329 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:00,329 INFO L276 IsEmpty]: Start isEmpty. Operand 5834 states and 15596 transitions. [2021-06-05 00:37:00,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:00,333 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:00,333 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:00,333 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-06-05 00:37:00,333 INFO L430 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:00,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:00,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1462617228, now seen corresponding path program 76 times [2021-06-05 00:37:00,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:00,333 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180514968] [2021-06-05 00:37:00,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:00,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:00,644 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:00,644 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180514968] [2021-06-05 00:37:00,644 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180514968] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:00,644 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:00,644 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:00,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429285395] [2021-06-05 00:37:00,644 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:00,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:00,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:00,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:00,645 INFO L87 Difference]: Start difference. First operand 5834 states and 15596 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:01,361 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:37:01,524 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:37:01,695 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:37:01,874 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:37:02,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:02,041 INFO L93 Difference]: Finished difference Result 25321 states and 66155 transitions. [2021-06-05 00:37:02,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:02,041 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:02,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:02,064 INFO L225 Difference]: With dead ends: 25321 [2021-06-05 00:37:02,064 INFO L226 Difference]: Without dead ends: 25321 [2021-06-05 00:37:02,065 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1231.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:02,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25321 states. [2021-06-05 00:37:02,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25321 to 5806. [2021-06-05 00:37:02,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5806 states, 5804 states have (on average 2.669882839421089) internal successors, (15496), 5805 states have internal predecessors, (15496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:02,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5806 states to 5806 states and 15496 transitions. [2021-06-05 00:37:02,210 INFO L78 Accepts]: Start accepts. Automaton has 5806 states and 15496 transitions. Word has length 114 [2021-06-05 00:37:02,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:02,210 INFO L482 AbstractCegarLoop]: Abstraction has 5806 states and 15496 transitions. [2021-06-05 00:37:02,210 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:02,210 INFO L276 IsEmpty]: Start isEmpty. Operand 5806 states and 15496 transitions. [2021-06-05 00:37:02,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:02,214 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:02,214 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:02,214 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-06-05 00:37:02,214 INFO L430 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:02,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:02,214 INFO L82 PathProgramCache]: Analyzing trace with hash -351110770, now seen corresponding path program 77 times [2021-06-05 00:37:02,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:02,215 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640535772] [2021-06-05 00:37:02,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:02,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:02,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:02,507 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:02,507 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640535772] [2021-06-05 00:37:02,507 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640535772] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:02,507 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:02,507 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:02,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482322966] [2021-06-05 00:37:02,508 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:02,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:02,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:02,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:02,508 INFO L87 Difference]: Start difference. First operand 5806 states and 15496 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:03,207 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:37:03,352 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:37:03,513 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:37:03,705 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:37:03,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:03,852 INFO L93 Difference]: Finished difference Result 24521 states and 64302 transitions. [2021-06-05 00:37:03,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:03,853 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:03,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:03,874 INFO L225 Difference]: With dead ends: 24521 [2021-06-05 00:37:03,874 INFO L226 Difference]: Without dead ends: 24521 [2021-06-05 00:37:03,874 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1226.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:03,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24521 states. [2021-06-05 00:37:04,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24521 to 5838. [2021-06-05 00:37:04,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5838 states, 5836 states have (on average 2.6710075394105552) internal successors, (15588), 5837 states have internal predecessors, (15588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:04,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5838 states to 5838 states and 15588 transitions. [2021-06-05 00:37:04,012 INFO L78 Accepts]: Start accepts. Automaton has 5838 states and 15588 transitions. Word has length 114 [2021-06-05 00:37:04,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:04,012 INFO L482 AbstractCegarLoop]: Abstraction has 5838 states and 15588 transitions. [2021-06-05 00:37:04,012 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:04,012 INFO L276 IsEmpty]: Start isEmpty. Operand 5838 states and 15588 transitions. [2021-06-05 00:37:04,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:04,016 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:04,016 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:04,016 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-06-05 00:37:04,016 INFO L430 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:04,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:04,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1784363852, now seen corresponding path program 78 times [2021-06-05 00:37:04,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:04,017 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245079891] [2021-06-05 00:37:04,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:04,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:04,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:04,300 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:04,300 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245079891] [2021-06-05 00:37:04,300 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245079891] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:04,300 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:04,300 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:04,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274969539] [2021-06-05 00:37:04,301 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:04,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:04,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:04,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:04,301 INFO L87 Difference]: Start difference. First operand 5838 states and 15588 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:05,001 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:37:05,142 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:37:05,312 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:37:05,483 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:37:05,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:05,640 INFO L93 Difference]: Finished difference Result 25367 states and 66162 transitions. [2021-06-05 00:37:05,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:05,640 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:05,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:05,664 INFO L225 Difference]: With dead ends: 25367 [2021-06-05 00:37:05,665 INFO L226 Difference]: Without dead ends: 25367 [2021-06-05 00:37:05,665 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1203.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:05,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25367 states. [2021-06-05 00:37:05,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25367 to 5822. [2021-06-05 00:37:05,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5822 states, 5820 states have (on average 2.670446735395189) internal successors, (15542), 5821 states have internal predecessors, (15542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:05,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5822 states to 5822 states and 15542 transitions. [2021-06-05 00:37:05,807 INFO L78 Accepts]: Start accepts. Automaton has 5822 states and 15542 transitions. Word has length 114 [2021-06-05 00:37:05,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:05,807 INFO L482 AbstractCegarLoop]: Abstraction has 5822 states and 15542 transitions. [2021-06-05 00:37:05,807 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:05,807 INFO L276 IsEmpty]: Start isEmpty. Operand 5822 states and 15542 transitions. [2021-06-05 00:37:05,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:05,811 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:05,811 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:05,811 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-06-05 00:37:05,811 INFO L430 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:05,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:05,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1712739984, now seen corresponding path program 79 times [2021-06-05 00:37:05,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:05,812 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019538850] [2021-06-05 00:37:05,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:05,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:06,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:06,165 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:06,166 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019538850] [2021-06-05 00:37:06,166 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019538850] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:06,166 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:06,166 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:06,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521446626] [2021-06-05 00:37:06,166 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:06,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:06,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:06,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:06,166 INFO L87 Difference]: Start difference. First operand 5822 states and 15542 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:06,881 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:37:07,026 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:37:07,194 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:37:07,372 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:37:07,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:07,541 INFO L93 Difference]: Finished difference Result 24667 states and 64533 transitions. [2021-06-05 00:37:07,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:07,542 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:07,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:07,564 INFO L225 Difference]: With dead ends: 24667 [2021-06-05 00:37:07,564 INFO L226 Difference]: Without dead ends: 24667 [2021-06-05 00:37:07,564 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1273.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:07,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24667 states. [2021-06-05 00:37:07,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24667 to 5838. [2021-06-05 00:37:07,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5838 states, 5836 states have (on average 2.6710075394105552) internal successors, (15588), 5837 states have internal predecessors, (15588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:07,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5838 states to 5838 states and 15588 transitions. [2021-06-05 00:37:07,703 INFO L78 Accepts]: Start accepts. Automaton has 5838 states and 15588 transitions. Word has length 114 [2021-06-05 00:37:07,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:07,703 INFO L482 AbstractCegarLoop]: Abstraction has 5838 states and 15588 transitions. [2021-06-05 00:37:07,703 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:07,704 INFO L276 IsEmpty]: Start isEmpty. Operand 5838 states and 15588 transitions. [2021-06-05 00:37:07,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:07,708 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:07,708 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:07,708 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-06-05 00:37:07,708 INFO L430 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:07,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:07,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1961286964, now seen corresponding path program 80 times [2021-06-05 00:37:07,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:07,709 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526628227] [2021-06-05 00:37:07,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:07,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:07,986 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:07,986 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526628227] [2021-06-05 00:37:07,986 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526628227] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:07,986 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:07,986 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:07,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301768836] [2021-06-05 00:37:07,987 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:07,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:07,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:07,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:07,987 INFO L87 Difference]: Start difference. First operand 5838 states and 15588 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:08,703 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:37:08,863 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:37:09,022 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:37:09,201 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:37:09,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:09,354 INFO L93 Difference]: Finished difference Result 21925 states and 57621 transitions. [2021-06-05 00:37:09,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:09,355 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:09,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:09,375 INFO L225 Difference]: With dead ends: 21925 [2021-06-05 00:37:09,375 INFO L226 Difference]: Without dead ends: 21925 [2021-06-05 00:37:09,375 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1210.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:09,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21925 states. [2021-06-05 00:37:09,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21925 to 5794. [2021-06-05 00:37:09,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5794 states, 5792 states have (on average 2.6681629834254146) internal successors, (15454), 5793 states have internal predecessors, (15454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:09,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5794 states to 5794 states and 15454 transitions. [2021-06-05 00:37:09,508 INFO L78 Accepts]: Start accepts. Automaton has 5794 states and 15454 transitions. Word has length 114 [2021-06-05 00:37:09,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:09,508 INFO L482 AbstractCegarLoop]: Abstraction has 5794 states and 15454 transitions. [2021-06-05 00:37:09,509 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:09,509 INFO L276 IsEmpty]: Start isEmpty. Operand 5794 states and 15454 transitions. [2021-06-05 00:37:09,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:09,513 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:09,513 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:09,513 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-06-05 00:37:09,514 INFO L430 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:09,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:09,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1614194928, now seen corresponding path program 81 times [2021-06-05 00:37:09,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:09,514 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927863295] [2021-06-05 00:37:09,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:09,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:09,857 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:09,857 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927863295] [2021-06-05 00:37:09,857 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927863295] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:09,857 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:09,857 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:09,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726648186] [2021-06-05 00:37:09,857 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:09,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:09,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:09,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:09,858 INFO L87 Difference]: Start difference. First operand 5794 states and 15454 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:10,561 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:37:10,700 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:37:10,876 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:37:11,057 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:37:11,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:11,217 INFO L93 Difference]: Finished difference Result 23117 states and 61013 transitions. [2021-06-05 00:37:11,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:11,218 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:11,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:11,239 INFO L225 Difference]: With dead ends: 23117 [2021-06-05 00:37:11,239 INFO L226 Difference]: Without dead ends: 23117 [2021-06-05 00:37:11,239 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1252.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:11,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23117 states. [2021-06-05 00:37:11,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23117 to 5842. [2021-06-05 00:37:11,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5842 states, 5840 states have (on average 2.66986301369863) internal successors, (15592), 5841 states have internal predecessors, (15592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:11,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5842 states to 5842 states and 15592 transitions. [2021-06-05 00:37:11,382 INFO L78 Accepts]: Start accepts. Automaton has 5842 states and 15592 transitions. Word has length 114 [2021-06-05 00:37:11,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:11,382 INFO L482 AbstractCegarLoop]: Abstraction has 5842 states and 15592 transitions. [2021-06-05 00:37:11,383 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:11,383 INFO L276 IsEmpty]: Start isEmpty. Operand 5842 states and 15592 transitions. [2021-06-05 00:37:11,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:11,387 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:11,387 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:11,387 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-06-05 00:37:11,387 INFO L430 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:11,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:11,387 INFO L82 PathProgramCache]: Analyzing trace with hash -767535632, now seen corresponding path program 82 times [2021-06-05 00:37:11,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:11,387 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817492330] [2021-06-05 00:37:11,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:11,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:11,715 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:11,715 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817492330] [2021-06-05 00:37:11,716 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817492330] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:11,716 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:11,716 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:11,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666489125] [2021-06-05 00:37:11,716 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:11,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:11,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:11,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:11,716 INFO L87 Difference]: Start difference. First operand 5842 states and 15592 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:12,413 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:37:12,573 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:37:12,734 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:37:12,916 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:37:13,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:13,074 INFO L93 Difference]: Finished difference Result 23193 states and 61149 transitions. [2021-06-05 00:37:13,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:13,074 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:13,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:13,096 INFO L225 Difference]: With dead ends: 23193 [2021-06-05 00:37:13,096 INFO L226 Difference]: Without dead ends: 23193 [2021-06-05 00:37:13,096 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1223.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:13,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23193 states. [2021-06-05 00:37:13,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23193 to 5858. [2021-06-05 00:37:13,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5858 states, 5856 states have (on average 2.6704234972677594) internal successors, (15638), 5857 states have internal predecessors, (15638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:13,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5858 states to 5858 states and 15638 transitions. [2021-06-05 00:37:13,235 INFO L78 Accepts]: Start accepts. Automaton has 5858 states and 15638 transitions. Word has length 114 [2021-06-05 00:37:13,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:13,235 INFO L482 AbstractCegarLoop]: Abstraction has 5858 states and 15638 transitions. [2021-06-05 00:37:13,235 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:13,235 INFO L276 IsEmpty]: Start isEmpty. Operand 5858 states and 15638 transitions. [2021-06-05 00:37:13,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:13,239 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:13,239 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:13,239 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-06-05 00:37:13,239 INFO L430 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:13,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:13,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1367938990, now seen corresponding path program 83 times [2021-06-05 00:37:13,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:13,240 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027602757] [2021-06-05 00:37:13,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:13,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:13,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:13,551 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:13,551 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027602757] [2021-06-05 00:37:13,551 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027602757] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:13,551 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:13,551 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:13,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220474054] [2021-06-05 00:37:13,551 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:13,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:13,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:13,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:13,552 INFO L87 Difference]: Start difference. First operand 5858 states and 15638 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:14,149 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-06-05 00:37:14,277 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:37:14,434 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:37:14,606 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:37:14,783 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:37:14,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:14,933 INFO L93 Difference]: Finished difference Result 22577 states and 59175 transitions. [2021-06-05 00:37:14,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:14,934 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:14,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:14,956 INFO L225 Difference]: With dead ends: 22577 [2021-06-05 00:37:14,957 INFO L226 Difference]: Without dead ends: 22577 [2021-06-05 00:37:14,957 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1263.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:14,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22577 states. [2021-06-05 00:37:15,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22577 to 5810. [2021-06-05 00:37:15,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.668732782369146) internal successors, (15500), 5809 states have internal predecessors, (15500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:15,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15500 transitions. [2021-06-05 00:37:15,088 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15500 transitions. Word has length 114 [2021-06-05 00:37:15,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:15,088 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15500 transitions. [2021-06-05 00:37:15,088 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:15,088 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15500 transitions. [2021-06-05 00:37:15,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:15,092 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:15,092 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:15,092 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-06-05 00:37:15,092 INFO L430 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:15,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:15,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1235377614, now seen corresponding path program 84 times [2021-06-05 00:37:15,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:15,092 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703323546] [2021-06-05 00:37:15,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:15,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:15,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:15,401 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:15,401 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703323546] [2021-06-05 00:37:15,401 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703323546] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:15,401 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:15,401 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:15,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365340966] [2021-06-05 00:37:15,402 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:15,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:15,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:15,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:15,402 INFO L87 Difference]: Start difference. First operand 5810 states and 15500 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:16,229 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:37:16,404 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:37:16,586 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:37:16,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:16,733 INFO L93 Difference]: Finished difference Result 19337 states and 50928 transitions. [2021-06-05 00:37:16,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:16,733 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:16,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:16,750 INFO L225 Difference]: With dead ends: 19337 [2021-06-05 00:37:16,750 INFO L226 Difference]: Without dead ends: 19337 [2021-06-05 00:37:16,750 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1205.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:16,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19337 states. [2021-06-05 00:37:16,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19337 to 5782. [2021-06-05 00:37:16,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5782 states, 5780 states have (on average 2.6674740484429065) internal successors, (15418), 5781 states have internal predecessors, (15418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:16,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5782 states to 5782 states and 15418 transitions. [2021-06-05 00:37:16,878 INFO L78 Accepts]: Start accepts. Automaton has 5782 states and 15418 transitions. Word has length 114 [2021-06-05 00:37:16,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:16,878 INFO L482 AbstractCegarLoop]: Abstraction has 5782 states and 15418 transitions. [2021-06-05 00:37:16,878 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:16,878 INFO L276 IsEmpty]: Start isEmpty. Operand 5782 states and 15418 transitions. [2021-06-05 00:37:16,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:16,882 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:16,882 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:16,883 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-06-05 00:37:16,883 INFO L430 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:16,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:16,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1748073490, now seen corresponding path program 85 times [2021-06-05 00:37:16,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:16,883 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196534391] [2021-06-05 00:37:16,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:17,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:17,173 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:17,173 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196534391] [2021-06-05 00:37:17,173 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196534391] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:17,173 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:17,173 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:17,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938793160] [2021-06-05 00:37:17,173 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:17,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:17,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:17,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:17,174 INFO L87 Difference]: Start difference. First operand 5782 states and 15418 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:17,890 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:37:18,027 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:37:18,202 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:37:18,386 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:37:18,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:18,543 INFO L93 Difference]: Finished difference Result 19099 states and 50265 transitions. [2021-06-05 00:37:18,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:18,544 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:18,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:18,560 INFO L225 Difference]: With dead ends: 19099 [2021-06-05 00:37:18,560 INFO L226 Difference]: Without dead ends: 19099 [2021-06-05 00:37:18,560 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1197.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:18,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19099 states. [2021-06-05 00:37:18,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19099 to 5910. [2021-06-05 00:37:18,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5908 states have (on average 2.671970209884902) internal successors, (15786), 5909 states have internal predecessors, (15786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:18,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 15786 transitions. [2021-06-05 00:37:18,672 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 15786 transitions. Word has length 114 [2021-06-05 00:37:18,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:18,672 INFO L482 AbstractCegarLoop]: Abstraction has 5910 states and 15786 transitions. [2021-06-05 00:37:18,672 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:18,672 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 15786 transitions. [2021-06-05 00:37:18,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:18,676 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:18,677 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:18,677 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-06-05 00:37:18,677 INFO L430 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:18,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:18,677 INFO L82 PathProgramCache]: Analyzing trace with hash 165163246, now seen corresponding path program 86 times [2021-06-05 00:37:18,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:18,677 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259049687] [2021-06-05 00:37:18,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:18,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:18,966 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:18,966 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259049687] [2021-06-05 00:37:18,966 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259049687] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:18,966 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:18,966 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:18,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76367111] [2021-06-05 00:37:18,966 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:18,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:18,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:18,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:18,967 INFO L87 Difference]: Start difference. First operand 5910 states and 15786 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:19,695 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:37:19,853 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:37:20,014 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:37:20,199 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:37:20,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:20,355 INFO L93 Difference]: Finished difference Result 21723 states and 56988 transitions. [2021-06-05 00:37:20,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:20,355 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:20,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:20,373 INFO L225 Difference]: With dead ends: 21723 [2021-06-05 00:37:20,374 INFO L226 Difference]: Without dead ends: 21723 [2021-06-05 00:37:20,374 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1203.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:20,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21723 states. [2021-06-05 00:37:20,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21723 to 5926. [2021-06-05 00:37:20,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5926 states, 5924 states have (on average 2.6725185685347737) internal successors, (15832), 5925 states have internal predecessors, (15832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:20,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 15832 transitions. [2021-06-05 00:37:20,504 INFO L78 Accepts]: Start accepts. Automaton has 5926 states and 15832 transitions. Word has length 114 [2021-06-05 00:37:20,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:20,505 INFO L482 AbstractCegarLoop]: Abstraction has 5926 states and 15832 transitions. [2021-06-05 00:37:20,505 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:20,505 INFO L276 IsEmpty]: Start isEmpty. Operand 5926 states and 15832 transitions. [2021-06-05 00:37:20,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:20,509 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:20,509 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:20,509 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-06-05 00:37:20,509 INFO L430 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:20,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:20,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1994329428, now seen corresponding path program 87 times [2021-06-05 00:37:20,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:20,509 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598354190] [2021-06-05 00:37:20,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:20,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:20,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:20,805 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:20,805 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598354190] [2021-06-05 00:37:20,805 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598354190] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:20,805 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:20,805 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:20,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025246636] [2021-06-05 00:37:20,805 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:20,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:20,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:20,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:20,806 INFO L87 Difference]: Start difference. First operand 5926 states and 15832 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:21,500 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:37:21,653 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:37:21,823 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:37:22,001 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:37:22,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:22,143 INFO L93 Difference]: Finished difference Result 20003 states and 52276 transitions. [2021-06-05 00:37:22,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:22,143 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:22,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:22,161 INFO L225 Difference]: With dead ends: 20003 [2021-06-05 00:37:22,161 INFO L226 Difference]: Without dead ends: 20003 [2021-06-05 00:37:22,161 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1216.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:22,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20003 states. [2021-06-05 00:37:22,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20003 to 5878. [2021-06-05 00:37:22,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5878 states, 5876 states have (on average 2.6708645336963923) internal successors, (15694), 5877 states have internal predecessors, (15694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:22,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 15694 transitions. [2021-06-05 00:37:22,291 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 15694 transitions. Word has length 114 [2021-06-05 00:37:22,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:22,291 INFO L482 AbstractCegarLoop]: Abstraction has 5878 states and 15694 transitions. [2021-06-05 00:37:22,291 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:22,291 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 15694 transitions. [2021-06-05 00:37:22,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:22,296 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:22,296 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:22,296 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-06-05 00:37:22,296 INFO L430 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:22,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:22,296 INFO L82 PathProgramCache]: Analyzing trace with hash 486909870, now seen corresponding path program 88 times [2021-06-05 00:37:22,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:22,296 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673819193] [2021-06-05 00:37:22,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:22,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:22,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:22,574 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:22,574 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673819193] [2021-06-05 00:37:22,574 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673819193] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:22,574 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:22,574 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:22,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542878903] [2021-06-05 00:37:22,574 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:22,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:22,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:22,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:22,575 INFO L87 Difference]: Start difference. First operand 5878 states and 15694 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:23,280 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:37:23,423 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:37:23,580 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:37:23,760 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:37:23,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:23,916 INFO L93 Difference]: Finished difference Result 23079 states and 60205 transitions. [2021-06-05 00:37:23,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:23,916 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:23,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:23,936 INFO L225 Difference]: With dead ends: 23079 [2021-06-05 00:37:23,936 INFO L226 Difference]: Without dead ends: 23079 [2021-06-05 00:37:23,936 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1193.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:23,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23079 states. [2021-06-05 00:37:24,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23079 to 5910. [2021-06-05 00:37:24,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5908 states have (on average 2.671970209884902) internal successors, (15786), 5909 states have internal predecessors, (15786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:24,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 15786 transitions. [2021-06-05 00:37:24,068 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 15786 transitions. Word has length 114 [2021-06-05 00:37:24,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:24,068 INFO L482 AbstractCegarLoop]: Abstraction has 5910 states and 15786 transitions. [2021-06-05 00:37:24,068 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:24,068 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 15786 transitions. [2021-06-05 00:37:24,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:24,072 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:24,072 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:24,072 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-06-05 00:37:24,072 INFO L430 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:24,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:24,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1672582804, now seen corresponding path program 89 times [2021-06-05 00:37:24,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:24,073 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50324443] [2021-06-05 00:37:24,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:24,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:24,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:24,355 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:24,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50324443] [2021-06-05 00:37:24,355 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50324443] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:24,355 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:24,355 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:24,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500273385] [2021-06-05 00:37:24,355 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:24,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:24,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:24,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:24,356 INFO L87 Difference]: Start difference. First operand 5910 states and 15786 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:25,069 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:37:25,210 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:37:25,378 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:37:25,551 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:37:25,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:25,710 INFO L93 Difference]: Finished difference Result 23925 states and 62065 transitions. [2021-06-05 00:37:25,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:25,710 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:25,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:25,733 INFO L225 Difference]: With dead ends: 23925 [2021-06-05 00:37:25,733 INFO L226 Difference]: Without dead ends: 23925 [2021-06-05 00:37:25,734 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1214.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:25,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23925 states. [2021-06-05 00:37:25,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23925 to 5894. [2021-06-05 00:37:25,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5894 states, 5892 states have (on average 2.671418873048201) internal successors, (15740), 5893 states have internal predecessors, (15740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:25,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5894 states to 5894 states and 15740 transitions. [2021-06-05 00:37:25,873 INFO L78 Accepts]: Start accepts. Automaton has 5894 states and 15740 transitions. Word has length 114 [2021-06-05 00:37:25,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:25,873 INFO L482 AbstractCegarLoop]: Abstraction has 5894 states and 15740 transitions. [2021-06-05 00:37:25,873 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:25,873 INFO L276 IsEmpty]: Start isEmpty. Operand 5894 states and 15740 transitions. [2021-06-05 00:37:25,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:25,878 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:25,878 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:25,879 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-06-05 00:37:25,879 INFO L430 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:25,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:25,879 INFO L82 PathProgramCache]: Analyzing trace with hash -874719344, now seen corresponding path program 90 times [2021-06-05 00:37:25,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:25,879 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008275247] [2021-06-05 00:37:25,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:25,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:26,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:26,165 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:26,165 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008275247] [2021-06-05 00:37:26,165 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008275247] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:26,165 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:26,165 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:26,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314551112] [2021-06-05 00:37:26,166 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:26,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:26,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:26,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:26,166 INFO L87 Difference]: Start difference. First operand 5894 states and 15740 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:26,857 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:37:26,999 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:37:27,165 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:37:27,342 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:37:27,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:27,513 INFO L93 Difference]: Finished difference Result 23225 states and 60436 transitions. [2021-06-05 00:37:27,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:27,513 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:27,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:27,531 INFO L225 Difference]: With dead ends: 23225 [2021-06-05 00:37:27,531 INFO L226 Difference]: Without dead ends: 23225 [2021-06-05 00:37:27,531 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1197.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:27,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23225 states. [2021-06-05 00:37:27,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23225 to 5910. [2021-06-05 00:37:27,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5908 states have (on average 2.671970209884902) internal successors, (15786), 5909 states have internal predecessors, (15786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:27,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 15786 transitions. [2021-06-05 00:37:27,655 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 15786 transitions. Word has length 114 [2021-06-05 00:37:27,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:27,655 INFO L482 AbstractCegarLoop]: Abstraction has 5910 states and 15786 transitions. [2021-06-05 00:37:27,655 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:27,655 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 15786 transitions. [2021-06-05 00:37:27,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:27,660 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:27,660 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:27,660 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-06-05 00:37:27,660 INFO L430 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:27,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:27,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1123266324, now seen corresponding path program 91 times [2021-06-05 00:37:27,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:27,660 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749146176] [2021-06-05 00:37:27,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:27,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:27,937 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:27,937 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749146176] [2021-06-05 00:37:27,937 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749146176] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:27,937 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:27,937 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:27,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092209137] [2021-06-05 00:37:27,937 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:27,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:27,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:27,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:27,938 INFO L87 Difference]: Start difference. First operand 5910 states and 15786 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:28,654 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:37:28,800 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:37:28,959 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:37:29,139 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:37:29,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:29,278 INFO L93 Difference]: Finished difference Result 20183 states and 52774 transitions. [2021-06-05 00:37:29,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:29,279 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:29,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:29,296 INFO L225 Difference]: With dead ends: 20183 [2021-06-05 00:37:29,296 INFO L226 Difference]: Without dead ends: 20183 [2021-06-05 00:37:29,296 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1191.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:29,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20183 states. [2021-06-05 00:37:29,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20183 to 5846. [2021-06-05 00:37:29,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5846 states, 5844 states have (on average 2.6697467488021904) internal successors, (15602), 5845 states have internal predecessors, (15602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:29,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5846 states to 5846 states and 15602 transitions. [2021-06-05 00:37:29,410 INFO L78 Accepts]: Start accepts. Automaton has 5846 states and 15602 transitions. Word has length 114 [2021-06-05 00:37:29,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:29,410 INFO L482 AbstractCegarLoop]: Abstraction has 5846 states and 15602 transitions. [2021-06-05 00:37:29,410 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:29,410 INFO L276 IsEmpty]: Start isEmpty. Operand 5846 states and 15602 transitions. [2021-06-05 00:37:29,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:29,414 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:29,414 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:29,414 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-06-05 00:37:29,414 INFO L430 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:29,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:29,415 INFO L82 PathProgramCache]: Analyzing trace with hash 351707696, now seen corresponding path program 92 times [2021-06-05 00:37:29,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:29,415 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178618402] [2021-06-05 00:37:29,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:29,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:29,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:29,692 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:29,692 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178618402] [2021-06-05 00:37:29,692 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178618402] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:29,692 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:29,692 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:29,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961479684] [2021-06-05 00:37:29,692 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:29,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:29,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:29,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:29,693 INFO L87 Difference]: Start difference. First operand 5846 states and 15602 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:30,427 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:37:30,572 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:37:30,733 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:37:30,913 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:37:31,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:31,061 INFO L93 Difference]: Finished difference Result 18659 states and 49039 transitions. [2021-06-05 00:37:31,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:31,061 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:31,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:31,078 INFO L225 Difference]: With dead ends: 18659 [2021-06-05 00:37:31,079 INFO L226 Difference]: Without dead ends: 18659 [2021-06-05 00:37:31,079 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1206.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:31,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18659 states. [2021-06-05 00:37:31,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18659 to 5910. [2021-06-05 00:37:31,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5908 states have (on average 2.671970209884902) internal successors, (15786), 5909 states have internal predecessors, (15786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:31,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 15786 transitions. [2021-06-05 00:37:31,195 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 15786 transitions. Word has length 114 [2021-06-05 00:37:31,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:31,195 INFO L482 AbstractCegarLoop]: Abstraction has 5910 states and 15786 transitions. [2021-06-05 00:37:31,195 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:31,195 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 15786 transitions. [2021-06-05 00:37:31,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:31,200 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:31,200 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:31,200 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-06-05 00:37:31,200 INFO L430 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:31,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:31,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1807784978, now seen corresponding path program 93 times [2021-06-05 00:37:31,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:31,200 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721538589] [2021-06-05 00:37:31,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:31,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:31,492 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:31,492 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721538589] [2021-06-05 00:37:31,492 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721538589] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:31,492 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:31,492 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:31,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482793721] [2021-06-05 00:37:31,493 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:31,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:31,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:31,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:31,493 INFO L87 Difference]: Start difference. First operand 5910 states and 15786 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:32,213 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:37:32,359 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:37:32,533 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:37:32,710 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:37:32,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:32,880 INFO L93 Difference]: Finished difference Result 19505 states and 50899 transitions. [2021-06-05 00:37:32,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:32,880 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:32,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:32,897 INFO L225 Difference]: With dead ends: 19505 [2021-06-05 00:37:32,897 INFO L226 Difference]: Without dead ends: 19505 [2021-06-05 00:37:32,897 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1208.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:32,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19505 states. [2021-06-05 00:37:33,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19505 to 5894. [2021-06-05 00:37:33,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5894 states, 5892 states have (on average 2.671418873048201) internal successors, (15740), 5893 states have internal predecessors, (15740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:33,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5894 states to 5894 states and 15740 transitions. [2021-06-05 00:37:33,013 INFO L78 Accepts]: Start accepts. Automaton has 5894 states and 15740 transitions. Word has length 114 [2021-06-05 00:37:33,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:33,013 INFO L482 AbstractCegarLoop]: Abstraction has 5894 states and 15740 transitions. [2021-06-05 00:37:33,013 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:33,013 INFO L276 IsEmpty]: Start isEmpty. Operand 5894 states and 15740 transitions. [2021-06-05 00:37:33,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:33,017 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:33,018 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:33,018 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-06-05 00:37:33,018 INFO L430 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:33,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:33,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1009921518, now seen corresponding path program 94 times [2021-06-05 00:37:33,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:33,018 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473011522] [2021-06-05 00:37:33,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:33,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:33,303 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:33,303 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473011522] [2021-06-05 00:37:33,303 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473011522] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:33,303 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:33,303 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:33,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421316993] [2021-06-05 00:37:33,303 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:33,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:33,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:33,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:33,304 INFO L87 Difference]: Start difference. First operand 5894 states and 15740 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:34,001 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:37:34,144 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:37:34,309 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:37:34,483 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:37:34,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:34,634 INFO L93 Difference]: Finished difference Result 22711 states and 59013 transitions. [2021-06-05 00:37:34,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:34,634 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:34,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:34,655 INFO L225 Difference]: With dead ends: 22711 [2021-06-05 00:37:34,655 INFO L226 Difference]: Without dead ends: 22711 [2021-06-05 00:37:34,655 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1206.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:34,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22711 states. [2021-06-05 00:37:34,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22711 to 5910. [2021-06-05 00:37:34,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5908 states have (on average 2.671970209884902) internal successors, (15786), 5909 states have internal predecessors, (15786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:34,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 15786 transitions. [2021-06-05 00:37:34,787 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 15786 transitions. Word has length 114 [2021-06-05 00:37:34,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:34,787 INFO L482 AbstractCegarLoop]: Abstraction has 5910 states and 15786 transitions. [2021-06-05 00:37:34,787 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:34,787 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 15786 transitions. [2021-06-05 00:37:34,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:34,791 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:34,791 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:34,792 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-06-05 00:37:34,792 INFO L430 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:34,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:34,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1258468498, now seen corresponding path program 95 times [2021-06-05 00:37:34,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:34,792 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634644418] [2021-06-05 00:37:34,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:34,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:35,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:35,068 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:35,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634644418] [2021-06-05 00:37:35,068 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634644418] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:35,068 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:35,068 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:35,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718151966] [2021-06-05 00:37:35,068 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:35,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:35,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:35,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:35,069 INFO L87 Difference]: Start difference. First operand 5910 states and 15786 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:35,803 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:37:35,955 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:37:36,117 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:37:36,297 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:37:36,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:36,440 INFO L93 Difference]: Finished difference Result 19669 states and 51351 transitions. [2021-06-05 00:37:36,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:36,440 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:36,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:36,458 INFO L225 Difference]: With dead ends: 19669 [2021-06-05 00:37:36,458 INFO L226 Difference]: Without dead ends: 19669 [2021-06-05 00:37:36,459 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1217.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:36,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19669 states. [2021-06-05 00:37:36,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19669 to 5878. [2021-06-05 00:37:36,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5878 states, 5876 states have (on average 2.6708645336963923) internal successors, (15694), 5877 states have internal predecessors, (15694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:36,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 15694 transitions. [2021-06-05 00:37:36,579 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 15694 transitions. Word has length 114 [2021-06-05 00:37:36,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:36,579 INFO L482 AbstractCegarLoop]: Abstraction has 5878 states and 15694 transitions. [2021-06-05 00:37:36,579 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:36,579 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 15694 transitions. [2021-06-05 00:37:36,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:36,584 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:36,584 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:36,584 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-06-05 00:37:36,584 INFO L430 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:36,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:36,584 INFO L82 PathProgramCache]: Analyzing trace with hash 2016228492, now seen corresponding path program 96 times [2021-06-05 00:37:36,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:36,584 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062242218] [2021-06-05 00:37:36,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:36,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:36,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:36,882 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:36,882 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062242218] [2021-06-05 00:37:36,882 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062242218] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:36,882 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:36,882 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:36,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436822564] [2021-06-05 00:37:36,883 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:36,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:36,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:36,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:36,883 INFO L87 Difference]: Start difference. First operand 5878 states and 15694 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:37,590 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:37:37,748 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:37:37,919 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:37:38,099 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:37:38,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:38,262 INFO L93 Difference]: Finished difference Result 18789 states and 49224 transitions. [2021-06-05 00:37:38,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:38,262 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:38,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:38,278 INFO L225 Difference]: With dead ends: 18789 [2021-06-05 00:37:38,278 INFO L226 Difference]: Without dead ends: 18789 [2021-06-05 00:37:38,278 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1217.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:38,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18789 states. [2021-06-05 00:37:38,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18789 to 5926. [2021-06-05 00:37:38,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5926 states, 5924 states have (on average 2.6725185685347737) internal successors, (15832), 5925 states have internal predecessors, (15832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:38,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 15832 transitions. [2021-06-05 00:37:38,388 INFO L78 Accepts]: Start accepts. Automaton has 5926 states and 15832 transitions. Word has length 114 [2021-06-05 00:37:38,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:38,388 INFO L482 AbstractCegarLoop]: Abstraction has 5926 states and 15832 transitions. [2021-06-05 00:37:38,388 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:38,388 INFO L276 IsEmpty]: Start isEmpty. Operand 5926 states and 15832 transitions. [2021-06-05 00:37:38,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:38,392 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:38,392 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:38,392 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-06-05 00:37:38,392 INFO L430 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:38,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:38,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1767681512, now seen corresponding path program 97 times [2021-06-05 00:37:38,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:38,393 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972649099] [2021-06-05 00:37:38,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:38,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:38,699 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:38,699 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972649099] [2021-06-05 00:37:38,699 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972649099] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:38,700 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:38,700 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:38,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421198264] [2021-06-05 00:37:38,700 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:38,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:38,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:38,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:38,700 INFO L87 Difference]: Start difference. First operand 5926 states and 15832 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:39,384 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:37:39,536 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:37:39,695 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:37:39,875 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:37:40,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:40,003 INFO L93 Difference]: Finished difference Result 18625 states and 48822 transitions. [2021-06-05 00:37:40,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:40,003 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:40,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:40,020 INFO L225 Difference]: With dead ends: 18625 [2021-06-05 00:37:40,020 INFO L226 Difference]: Without dead ends: 18625 [2021-06-05 00:37:40,020 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1213.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:40,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18625 states. [2021-06-05 00:37:40,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18625 to 5910. [2021-06-05 00:37:40,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5908 states have (on average 2.671970209884902) internal successors, (15786), 5909 states have internal predecessors, (15786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:40,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 15786 transitions. [2021-06-05 00:37:40,129 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 15786 transitions. Word has length 114 [2021-06-05 00:37:40,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:40,129 INFO L482 AbstractCegarLoop]: Abstraction has 5910 states and 15786 transitions. [2021-06-05 00:37:40,129 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:40,129 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 15786 transitions. [2021-06-05 00:37:40,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:40,133 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:40,134 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:40,134 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-06-05 00:37:40,134 INFO L430 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:40,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:40,134 INFO L82 PathProgramCache]: Analyzing trace with hash 610864208, now seen corresponding path program 98 times [2021-06-05 00:37:40,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:40,134 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180642922] [2021-06-05 00:37:40,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:40,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:40,430 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:40,430 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180642922] [2021-06-05 00:37:40,430 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180642922] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:40,430 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:40,430 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:40,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493949134] [2021-06-05 00:37:40,430 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:40,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:40,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:40,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:40,431 INFO L87 Difference]: Start difference. First operand 5910 states and 15786 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:41,131 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:37:41,265 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:37:41,432 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:37:41,616 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:37:41,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:41,751 INFO L93 Difference]: Finished difference Result 15983 states and 42144 transitions. [2021-06-05 00:37:41,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:41,752 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:41,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:41,766 INFO L225 Difference]: With dead ends: 15983 [2021-06-05 00:37:41,766 INFO L226 Difference]: Without dead ends: 15983 [2021-06-05 00:37:41,766 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1213.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:41,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15983 states. [2021-06-05 00:37:41,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15983 to 5794. [2021-06-05 00:37:41,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5794 states, 5792 states have (on average 2.6650552486187844) internal successors, (15436), 5793 states have internal predecessors, (15436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:41,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5794 states to 5794 states and 15436 transitions. [2021-06-05 00:37:41,864 INFO L78 Accepts]: Start accepts. Automaton has 5794 states and 15436 transitions. Word has length 114 [2021-06-05 00:37:41,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:41,865 INFO L482 AbstractCegarLoop]: Abstraction has 5794 states and 15436 transitions. [2021-06-05 00:37:41,865 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:41,865 INFO L276 IsEmpty]: Start isEmpty. Operand 5794 states and 15436 transitions. [2021-06-05 00:37:41,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:41,869 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:41,869 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:41,869 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-06-05 00:37:41,869 INFO L430 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:41,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:41,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1755420304, now seen corresponding path program 99 times [2021-06-05 00:37:41,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:41,869 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897174397] [2021-06-05 00:37:41,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:41,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:42,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:42,160 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:42,160 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897174397] [2021-06-05 00:37:42,160 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897174397] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:42,160 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:42,160 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:42,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302903878] [2021-06-05 00:37:42,160 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:42,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:42,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:42,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:42,161 INFO L87 Difference]: Start difference. First operand 5794 states and 15436 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:42,845 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:37:42,980 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:37:43,150 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:37:43,330 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:37:43,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:43,484 INFO L93 Difference]: Finished difference Result 18795 states and 49439 transitions. [2021-06-05 00:37:43,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:43,484 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:43,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:43,500 INFO L225 Difference]: With dead ends: 18795 [2021-06-05 00:37:43,501 INFO L226 Difference]: Without dead ends: 18795 [2021-06-05 00:37:43,501 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1192.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:43,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18795 states. [2021-06-05 00:37:43,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18795 to 5890. [2021-06-05 00:37:43,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5890 states, 5888 states have (on average 2.6684782608695654) internal successors, (15712), 5889 states have internal predecessors, (15712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:43,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5890 states to 5890 states and 15712 transitions. [2021-06-05 00:37:43,620 INFO L78 Accepts]: Start accepts. Automaton has 5890 states and 15712 transitions. Word has length 114 [2021-06-05 00:37:43,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:43,620 INFO L482 AbstractCegarLoop]: Abstraction has 5890 states and 15712 transitions. [2021-06-05 00:37:43,620 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:43,620 INFO L276 IsEmpty]: Start isEmpty. Operand 5890 states and 15712 transitions. [2021-06-05 00:37:43,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:43,624 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:43,624 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:43,624 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-06-05 00:37:43,624 INFO L430 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:43,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:43,625 INFO L82 PathProgramCache]: Analyzing trace with hash -626310256, now seen corresponding path program 100 times [2021-06-05 00:37:43,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:43,625 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660865542] [2021-06-05 00:37:43,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:43,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:43,914 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:43,914 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660865542] [2021-06-05 00:37:43,914 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660865542] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:43,914 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:43,914 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:43,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212788597] [2021-06-05 00:37:43,915 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:43,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:43,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:43,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:43,915 INFO L87 Difference]: Start difference. First operand 5890 states and 15712 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:44,601 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:37:44,757 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:37:44,913 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:37:45,094 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:37:45,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:45,248 INFO L93 Difference]: Finished difference Result 21419 states and 56162 transitions. [2021-06-05 00:37:45,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:45,248 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:45,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:45,268 INFO L225 Difference]: With dead ends: 21419 [2021-06-05 00:37:45,268 INFO L226 Difference]: Without dead ends: 21419 [2021-06-05 00:37:45,269 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1200.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:45,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21419 states. [2021-06-05 00:37:45,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21419 to 5906. [2021-06-05 00:37:45,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5906 states, 5904 states have (on average 2.669037940379404) internal successors, (15758), 5905 states have internal predecessors, (15758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:45,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5906 states to 5906 states and 15758 transitions. [2021-06-05 00:37:45,398 INFO L78 Accepts]: Start accepts. Automaton has 5906 states and 15758 transitions. Word has length 114 [2021-06-05 00:37:45,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:45,399 INFO L482 AbstractCegarLoop]: Abstraction has 5906 states and 15758 transitions. [2021-06-05 00:37:45,399 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:45,399 INFO L276 IsEmpty]: Start isEmpty. Operand 5906 states and 15758 transitions. [2021-06-05 00:37:45,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:45,403 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:45,403 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:45,403 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-06-05 00:37:45,404 INFO L430 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:45,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:45,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1509164366, now seen corresponding path program 101 times [2021-06-05 00:37:45,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:45,404 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839232157] [2021-06-05 00:37:45,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:45,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:45,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:45,698 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:45,698 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839232157] [2021-06-05 00:37:45,698 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839232157] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:45,699 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:45,699 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:45,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659188651] [2021-06-05 00:37:45,699 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:45,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:45,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:45,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:45,699 INFO L87 Difference]: Start difference. First operand 5906 states and 15758 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:46,414 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:37:46,575 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:37:46,746 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:37:46,926 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:37:47,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:47,085 INFO L93 Difference]: Finished difference Result 19699 states and 51450 transitions. [2021-06-05 00:37:47,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:47,086 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:47,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:47,103 INFO L225 Difference]: With dead ends: 19699 [2021-06-05 00:37:47,103 INFO L226 Difference]: Without dead ends: 19699 [2021-06-05 00:37:47,103 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1213.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:47,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19699 states. [2021-06-05 00:37:47,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19699 to 5858. [2021-06-05 00:37:47,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5858 states, 5856 states have (on average 2.6673497267759565) internal successors, (15620), 5857 states have internal predecessors, (15620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:47,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5858 states to 5858 states and 15620 transitions. [2021-06-05 00:37:47,220 INFO L78 Accepts]: Start accepts. Automaton has 5858 states and 15620 transitions. Word has length 114 [2021-06-05 00:37:47,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:47,220 INFO L482 AbstractCegarLoop]: Abstraction has 5858 states and 15620 transitions. [2021-06-05 00:37:47,220 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:47,220 INFO L276 IsEmpty]: Start isEmpty. Operand 5858 states and 15620 transitions. [2021-06-05 00:37:47,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:47,225 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:47,225 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:47,225 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-06-05 00:37:47,225 INFO L430 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:47,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:47,225 INFO L82 PathProgramCache]: Analyzing trace with hash -304563632, now seen corresponding path program 102 times [2021-06-05 00:37:47,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:47,225 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127811762] [2021-06-05 00:37:47,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:47,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:47,503 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:47,503 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127811762] [2021-06-05 00:37:47,503 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127811762] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:47,504 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:47,504 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:47,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375644617] [2021-06-05 00:37:47,504 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:47,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:47,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:47,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:47,504 INFO L87 Difference]: Start difference. First operand 5858 states and 15620 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:48,216 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:37:48,361 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:37:48,524 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:37:48,703 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:37:48,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:48,879 INFO L93 Difference]: Finished difference Result 18899 states and 49597 transitions. [2021-06-05 00:37:48,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:48,879 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:48,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:48,893 INFO L225 Difference]: With dead ends: 18899 [2021-06-05 00:37:48,893 INFO L226 Difference]: Without dead ends: 18899 [2021-06-05 00:37:48,893 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1194.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:48,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18899 states. [2021-06-05 00:37:48,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18899 to 5890. [2021-06-05 00:37:48,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5890 states, 5888 states have (on average 2.6684782608695654) internal successors, (15712), 5889 states have internal predecessors, (15712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:48,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5890 states to 5890 states and 15712 transitions. [2021-06-05 00:37:48,997 INFO L78 Accepts]: Start accepts. Automaton has 5890 states and 15712 transitions. Word has length 114 [2021-06-05 00:37:48,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:48,997 INFO L482 AbstractCegarLoop]: Abstraction has 5890 states and 15712 transitions. [2021-06-05 00:37:48,997 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:48,997 INFO L276 IsEmpty]: Start isEmpty. Operand 5890 states and 15712 transitions. [2021-06-05 00:37:49,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:49,001 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:49,001 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:49,001 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-06-05 00:37:49,001 INFO L430 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:49,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:49,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1830910990, now seen corresponding path program 103 times [2021-06-05 00:37:49,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:49,002 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764436055] [2021-06-05 00:37:49,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:49,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:49,285 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:49,285 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764436055] [2021-06-05 00:37:49,285 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764436055] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:49,285 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:49,286 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:49,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251018024] [2021-06-05 00:37:49,286 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:49,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:49,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:49,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:49,286 INFO L87 Difference]: Start difference. First operand 5890 states and 15712 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:49,981 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:37:50,122 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:37:50,289 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:37:50,462 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:37:50,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:50,610 INFO L93 Difference]: Finished difference Result 19745 states and 51457 transitions. [2021-06-05 00:37:50,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:50,610 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:50,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:50,627 INFO L225 Difference]: With dead ends: 19745 [2021-06-05 00:37:50,627 INFO L226 Difference]: Without dead ends: 19745 [2021-06-05 00:37:50,627 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1203.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:50,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19745 states. [2021-06-05 00:37:50,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19745 to 5874. [2021-06-05 00:37:50,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5874 states, 5872 states have (on average 2.66791553133515) internal successors, (15666), 5873 states have internal predecessors, (15666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:50,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5874 states to 5874 states and 15666 transitions. [2021-06-05 00:37:50,740 INFO L78 Accepts]: Start accepts. Automaton has 5874 states and 15666 transitions. Word has length 114 [2021-06-05 00:37:50,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:50,740 INFO L482 AbstractCegarLoop]: Abstraction has 5874 states and 15666 transitions. [2021-06-05 00:37:50,740 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:50,740 INFO L276 IsEmpty]: Start isEmpty. Operand 5874 states and 15666 transitions. [2021-06-05 00:37:50,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:50,744 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:50,744 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:50,744 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-06-05 00:37:50,744 INFO L430 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:50,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:50,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1666192846, now seen corresponding path program 104 times [2021-06-05 00:37:50,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:50,744 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211367528] [2021-06-05 00:37:50,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:50,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:51,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:51,022 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:51,022 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211367528] [2021-06-05 00:37:51,022 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211367528] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:51,022 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:51,022 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:51,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582302859] [2021-06-05 00:37:51,022 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:51,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:51,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:51,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:51,023 INFO L87 Difference]: Start difference. First operand 5874 states and 15666 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:51,750 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:37:51,897 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:37:52,066 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:37:52,242 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:37:52,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:52,398 INFO L93 Difference]: Finished difference Result 19045 states and 49828 transitions. [2021-06-05 00:37:52,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:52,399 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:52,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:52,416 INFO L225 Difference]: With dead ends: 19045 [2021-06-05 00:37:52,416 INFO L226 Difference]: Without dead ends: 19045 [2021-06-05 00:37:52,416 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1202.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:52,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19045 states. [2021-06-05 00:37:52,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19045 to 5890. [2021-06-05 00:37:52,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5890 states, 5888 states have (on average 2.6684782608695654) internal successors, (15712), 5889 states have internal predecessors, (15712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:52,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5890 states to 5890 states and 15712 transitions. [2021-06-05 00:37:52,537 INFO L78 Accepts]: Start accepts. Automaton has 5890 states and 15712 transitions. Word has length 114 [2021-06-05 00:37:52,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:52,537 INFO L482 AbstractCegarLoop]: Abstraction has 5890 states and 15712 transitions. [2021-06-05 00:37:52,537 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:52,538 INFO L276 IsEmpty]: Start isEmpty. Operand 5890 states and 15712 transitions. [2021-06-05 00:37:52,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:52,542 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:52,542 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:52,542 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-06-05 00:37:52,542 INFO L430 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:52,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:52,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1914739826, now seen corresponding path program 105 times [2021-06-05 00:37:52,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:52,543 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280657216] [2021-06-05 00:37:52,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:52,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:52,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:52,818 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:52,819 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280657216] [2021-06-05 00:37:52,819 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280657216] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:52,819 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:52,819 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:52,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857510757] [2021-06-05 00:37:52,819 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:52,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:52,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:52,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:52,819 INFO L87 Difference]: Start difference. First operand 5890 states and 15712 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:53,509 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:37:53,655 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:37:53,811 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:37:53,988 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:37:54,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:54,121 INFO L93 Difference]: Finished difference Result 16303 states and 42916 transitions. [2021-06-05 00:37:54,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:54,122 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:54,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:54,158 INFO L225 Difference]: With dead ends: 16303 [2021-06-05 00:37:54,158 INFO L226 Difference]: Without dead ends: 16303 [2021-06-05 00:37:54,158 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1189.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:54,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16303 states. [2021-06-05 00:37:54,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16303 to 5826. [2021-06-05 00:37:54,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5826 states, 5824 states have (on average 2.666208791208791) internal successors, (15528), 5825 states have internal predecessors, (15528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:54,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5826 states to 5826 states and 15528 transitions. [2021-06-05 00:37:54,241 INFO L78 Accepts]: Start accepts. Automaton has 5826 states and 15528 transitions. Word has length 114 [2021-06-05 00:37:54,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:54,242 INFO L482 AbstractCegarLoop]: Abstraction has 5826 states and 15528 transitions. [2021-06-05 00:37:54,242 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:54,242 INFO L276 IsEmpty]: Start isEmpty. Operand 5826 states and 15528 transitions. [2021-06-05 00:37:54,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:54,246 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:54,246 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:54,246 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-06-05 00:37:54,246 INFO L430 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:54,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:54,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1660742066, now seen corresponding path program 106 times [2021-06-05 00:37:54,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:54,246 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195283475] [2021-06-05 00:37:54,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:54,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:54,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:54,547 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:54,548 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195283475] [2021-06-05 00:37:54,548 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195283475] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:54,548 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:54,548 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:54,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998606425] [2021-06-05 00:37:54,548 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:54,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:54,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:54,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:54,551 INFO L87 Difference]: Start difference. First operand 5826 states and 15528 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:55,243 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:37:55,380 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:37:55,561 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:37:55,746 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:37:55,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:55,909 INFO L93 Difference]: Finished difference Result 21717 states and 57027 transitions. [2021-06-05 00:37:55,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:55,909 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:55,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:55,928 INFO L225 Difference]: With dead ends: 21717 [2021-06-05 00:37:55,928 INFO L226 Difference]: Without dead ends: 21717 [2021-06-05 00:37:55,928 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1211.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:55,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21717 states. [2021-06-05 00:37:56,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21717 to 5874. [2021-06-05 00:37:56,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5874 states, 5872 states have (on average 2.66791553133515) internal successors, (15666), 5873 states have internal predecessors, (15666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:56,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5874 states to 5874 states and 15666 transitions. [2021-06-05 00:37:56,052 INFO L78 Accepts]: Start accepts. Automaton has 5874 states and 15666 transitions. Word has length 114 [2021-06-05 00:37:56,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:56,052 INFO L482 AbstractCegarLoop]: Abstraction has 5874 states and 15666 transitions. [2021-06-05 00:37:56,052 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:56,052 INFO L276 IsEmpty]: Start isEmpty. Operand 5874 states and 15666 transitions. [2021-06-05 00:37:56,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:56,056 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:56,056 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:56,056 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-06-05 00:37:56,056 INFO L430 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:56,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:56,056 INFO L82 PathProgramCache]: Analyzing trace with hash -720988494, now seen corresponding path program 107 times [2021-06-05 00:37:56,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:56,056 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421492030] [2021-06-05 00:37:56,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:56,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:56,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:56,360 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:56,360 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421492030] [2021-06-05 00:37:56,360 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421492030] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:56,360 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:56,360 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:56,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812174690] [2021-06-05 00:37:56,360 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:56,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:56,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:56,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:56,361 INFO L87 Difference]: Start difference. First operand 5874 states and 15666 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:57,082 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:37:57,250 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:37:57,413 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:37:57,596 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:37:57,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:57,766 INFO L93 Difference]: Finished difference Result 21793 states and 57163 transitions. [2021-06-05 00:37:57,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:57,767 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:57,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:57,787 INFO L225 Difference]: With dead ends: 21793 [2021-06-05 00:37:57,787 INFO L226 Difference]: Without dead ends: 21793 [2021-06-05 00:37:57,788 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1231.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:57,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21793 states. [2021-06-05 00:37:57,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21793 to 5890. [2021-06-05 00:37:57,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5890 states, 5888 states have (on average 2.6684782608695654) internal successors, (15712), 5889 states have internal predecessors, (15712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:57,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5890 states to 5890 states and 15712 transitions. [2021-06-05 00:37:57,914 INFO L78 Accepts]: Start accepts. Automaton has 5890 states and 15712 transitions. Word has length 114 [2021-06-05 00:37:57,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:57,914 INFO L482 AbstractCegarLoop]: Abstraction has 5890 states and 15712 transitions. [2021-06-05 00:37:57,914 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:57,914 INFO L276 IsEmpty]: Start isEmpty. Operand 5890 states and 15712 transitions. [2021-06-05 00:37:57,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:57,918 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:57,918 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:57,918 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-06-05 00:37:57,918 INFO L430 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:57,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:57,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1414486128, now seen corresponding path program 108 times [2021-06-05 00:37:57,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:57,918 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748377898] [2021-06-05 00:37:57,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:58,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:58,236 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:58,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748377898] [2021-06-05 00:37:58,236 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748377898] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:58,236 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:58,236 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:37:58,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837107971] [2021-06-05 00:37:58,236 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:37:58,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:58,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:37:58,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:37:58,237 INFO L87 Difference]: Start difference. First operand 5890 states and 15712 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:58,951 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:37:59,116 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:37:59,290 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:37:59,468 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:37:59,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:59,651 INFO L93 Difference]: Finished difference Result 21177 states and 55189 transitions. [2021-06-05 00:37:59,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:37:59,651 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:37:59,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:59,670 INFO L225 Difference]: With dead ends: 21177 [2021-06-05 00:37:59,670 INFO L226 Difference]: Without dead ends: 21177 [2021-06-05 00:37:59,670 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1238.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:37:59,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21177 states. [2021-06-05 00:37:59,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21177 to 5842. [2021-06-05 00:37:59,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5842 states, 5840 states have (on average 2.666780821917808) internal successors, (15574), 5841 states have internal predecessors, (15574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:59,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5842 states to 5842 states and 15574 transitions. [2021-06-05 00:37:59,789 INFO L78 Accepts]: Start accepts. Automaton has 5842 states and 15574 transitions. Word has length 114 [2021-06-05 00:37:59,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:59,789 INFO L482 AbstractCegarLoop]: Abstraction has 5842 states and 15574 transitions. [2021-06-05 00:37:59,789 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:59,789 INFO L276 IsEmpty]: Start isEmpty. Operand 5842 states and 15574 transitions. [2021-06-05 00:37:59,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:37:59,793 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:59,793 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:59,793 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-06-05 00:37:59,793 INFO L430 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:59,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:59,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1281924752, now seen corresponding path program 109 times [2021-06-05 00:37:59,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:59,793 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174966881] [2021-06-05 00:37:59,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:59,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:00,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:00,099 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:00,099 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174966881] [2021-06-05 00:38:00,099 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174966881] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:00,099 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:00,099 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:00,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209814882] [2021-06-05 00:38:00,099 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:00,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:00,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:00,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:00,100 INFO L87 Difference]: Start difference. First operand 5842 states and 15574 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:00,927 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:38:01,108 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:38:01,290 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:38:01,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:01,426 INFO L93 Difference]: Finished difference Result 17585 states and 46090 transitions. [2021-06-05 00:38:01,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:01,426 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:01,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:01,442 INFO L225 Difference]: With dead ends: 17585 [2021-06-05 00:38:01,442 INFO L226 Difference]: Without dead ends: 17585 [2021-06-05 00:38:01,443 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1205.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:01,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17585 states. [2021-06-05 00:38:01,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17585 to 5810. [2021-06-05 00:38:01,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.665633608815427) internal successors, (15482), 5809 states have internal predecessors, (15482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:01,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15482 transitions. [2021-06-05 00:38:01,549 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15482 transitions. Word has length 114 [2021-06-05 00:38:01,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:01,549 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15482 transitions. [2021-06-05 00:38:01,549 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:01,549 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15482 transitions. [2021-06-05 00:38:01,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:01,553 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:01,553 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:01,553 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-06-05 00:38:01,554 INFO L430 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:01,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:01,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1254839758, now seen corresponding path program 110 times [2021-06-05 00:38:01,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:01,554 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780495552] [2021-06-05 00:38:01,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:01,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:01,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:01,872 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:01,872 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780495552] [2021-06-05 00:38:01,872 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780495552] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:01,872 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:01,872 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:01,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215298135] [2021-06-05 00:38:01,872 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:01,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:01,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:01,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:01,873 INFO L87 Difference]: Start difference. First operand 5810 states and 15482 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:02,579 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:38:02,714 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:38:02,889 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:38:03,070 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:38:03,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:03,211 INFO L93 Difference]: Finished difference Result 16807 states and 44510 transitions. [2021-06-05 00:38:03,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:03,211 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:03,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:03,226 INFO L225 Difference]: With dead ends: 16807 [2021-06-05 00:38:03,226 INFO L226 Difference]: Without dead ends: 16807 [2021-06-05 00:38:03,226 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1236.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:03,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16807 states. [2021-06-05 00:38:03,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16807 to 5874. [2021-06-05 00:38:03,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5874 states, 5872 states have (on average 2.66791553133515) internal successors, (15666), 5873 states have internal predecessors, (15666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:03,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5874 states to 5874 states and 15666 transitions. [2021-06-05 00:38:03,335 INFO L78 Accepts]: Start accepts. Automaton has 5874 states and 15666 transitions. Word has length 114 [2021-06-05 00:38:03,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:03,335 INFO L482 AbstractCegarLoop]: Abstraction has 5874 states and 15666 transitions. [2021-06-05 00:38:03,335 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:03,335 INFO L276 IsEmpty]: Start isEmpty. Operand 5874 states and 15666 transitions. [2021-06-05 00:38:03,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:03,339 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:03,339 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:03,339 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-06-05 00:38:03,339 INFO L430 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:03,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:03,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1126890802, now seen corresponding path program 111 times [2021-06-05 00:38:03,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:03,340 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129104929] [2021-06-05 00:38:03,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:03,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:03,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:03,663 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:03,663 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129104929] [2021-06-05 00:38:03,663 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129104929] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:03,663 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:03,663 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:03,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224162886] [2021-06-05 00:38:03,663 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:03,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:03,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:03,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:03,664 INFO L87 Difference]: Start difference. First operand 5874 states and 15666 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:04,369 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:38:04,528 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:38:04,687 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:38:04,866 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:38:05,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:05,027 INFO L93 Difference]: Finished difference Result 16883 states and 44646 transitions. [2021-06-05 00:38:05,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:05,028 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:05,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:05,043 INFO L225 Difference]: With dead ends: 16883 [2021-06-05 00:38:05,043 INFO L226 Difference]: Without dead ends: 16883 [2021-06-05 00:38:05,043 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1239.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:05,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16883 states. [2021-06-05 00:38:05,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16883 to 5890. [2021-06-05 00:38:05,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5890 states, 5888 states have (on average 2.6684782608695654) internal successors, (15712), 5889 states have internal predecessors, (15712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:05,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5890 states to 5890 states and 15712 transitions. [2021-06-05 00:38:05,149 INFO L78 Accepts]: Start accepts. Automaton has 5890 states and 15712 transitions. Word has length 114 [2021-06-05 00:38:05,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:05,150 INFO L482 AbstractCegarLoop]: Abstraction has 5890 states and 15712 transitions. [2021-06-05 00:38:05,150 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:05,150 INFO L276 IsEmpty]: Start isEmpty. Operand 5890 states and 15712 transitions. [2021-06-05 00:38:05,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:05,154 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:05,154 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:05,154 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-06-05 00:38:05,154 INFO L430 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:05,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:05,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1008583820, now seen corresponding path program 112 times [2021-06-05 00:38:05,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:05,154 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125557665] [2021-06-05 00:38:05,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:05,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:05,475 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:05,475 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125557665] [2021-06-05 00:38:05,475 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125557665] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:05,475 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:05,475 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:05,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692400519] [2021-06-05 00:38:05,476 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:05,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:05,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:05,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:05,476 INFO L87 Difference]: Start difference. First operand 5890 states and 15712 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:06,199 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:38:06,377 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:38:06,552 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:38:06,736 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:38:06,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:06,887 INFO L93 Difference]: Finished difference Result 16267 states and 42672 transitions. [2021-06-05 00:38:06,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:06,888 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:06,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:06,902 INFO L225 Difference]: With dead ends: 16267 [2021-06-05 00:38:06,902 INFO L226 Difference]: Without dead ends: 16267 [2021-06-05 00:38:06,902 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1271.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:06,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16267 states. [2021-06-05 00:38:06,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16267 to 5842. [2021-06-05 00:38:06,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5842 states, 5840 states have (on average 2.666780821917808) internal successors, (15574), 5841 states have internal predecessors, (15574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:07,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5842 states to 5842 states and 15574 transitions. [2021-06-05 00:38:07,001 INFO L78 Accepts]: Start accepts. Automaton has 5842 states and 15574 transitions. Word has length 114 [2021-06-05 00:38:07,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:07,001 INFO L482 AbstractCegarLoop]: Abstraction has 5842 states and 15574 transitions. [2021-06-05 00:38:07,001 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:07,001 INFO L276 IsEmpty]: Start isEmpty. Operand 5842 states and 15574 transitions. [2021-06-05 00:38:07,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:07,005 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:07,005 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:07,005 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-06-05 00:38:07,005 INFO L430 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:07,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:07,006 INFO L82 PathProgramCache]: Analyzing trace with hash 876022444, now seen corresponding path program 113 times [2021-06-05 00:38:07,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:07,006 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426542255] [2021-06-05 00:38:07,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:07,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:07,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:07,322 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:07,322 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426542255] [2021-06-05 00:38:07,322 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426542255] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:07,322 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:07,322 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:07,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191238691] [2021-06-05 00:38:07,323 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:07,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:07,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:07,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:07,323 INFO L87 Difference]: Start difference. First operand 5842 states and 15574 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:08,180 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:38:08,361 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:38:08,545 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:38:08,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:08,680 INFO L93 Difference]: Finished difference Result 16335 states and 42978 transitions. [2021-06-05 00:38:08,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:08,680 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:08,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:08,694 INFO L225 Difference]: With dead ends: 16335 [2021-06-05 00:38:08,694 INFO L226 Difference]: Without dead ends: 16335 [2021-06-05 00:38:08,694 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1225.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:08,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16335 states. [2021-06-05 00:38:08,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16335 to 5826. [2021-06-05 00:38:08,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5826 states, 5824 states have (on average 2.666208791208791) internal successors, (15528), 5825 states have internal predecessors, (15528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:08,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5826 states to 5826 states and 15528 transitions. [2021-06-05 00:38:08,793 INFO L78 Accepts]: Start accepts. Automaton has 5826 states and 15528 transitions. Word has length 114 [2021-06-05 00:38:08,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:08,793 INFO L482 AbstractCegarLoop]: Abstraction has 5826 states and 15528 transitions. [2021-06-05 00:38:08,793 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:08,793 INFO L276 IsEmpty]: Start isEmpty. Operand 5826 states and 15528 transitions. [2021-06-05 00:38:08,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:08,797 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:08,797 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:08,797 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-06-05 00:38:08,798 INFO L430 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:08,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:08,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1216266802, now seen corresponding path program 114 times [2021-06-05 00:38:08,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:08,798 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742282035] [2021-06-05 00:38:08,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:08,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:09,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:09,125 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:09,125 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742282035] [2021-06-05 00:38:09,125 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742282035] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:09,125 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:09,125 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:09,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864138] [2021-06-05 00:38:09,125 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:09,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:09,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:09,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:09,126 INFO L87 Difference]: Start difference. First operand 5826 states and 15528 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:09,936 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:38:10,112 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:38:10,295 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:38:10,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:10,442 INFO L93 Difference]: Finished difference Result 12961 states and 34254 transitions. [2021-06-05 00:38:10,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:10,442 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:10,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:10,452 INFO L225 Difference]: With dead ends: 12961 [2021-06-05 00:38:10,452 INFO L226 Difference]: Without dead ends: 12961 [2021-06-05 00:38:10,452 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1210.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:10,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12961 states. [2021-06-05 00:38:10,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12961 to 5770. [2021-06-05 00:38:10,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5770 states, 5768 states have (on average 2.663661581137309) internal successors, (15364), 5769 states have internal predecessors, (15364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:10,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5770 states to 5770 states and 15364 transitions. [2021-06-05 00:38:10,534 INFO L78 Accepts]: Start accepts. Automaton has 5770 states and 15364 transitions. Word has length 114 [2021-06-05 00:38:10,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:10,534 INFO L482 AbstractCegarLoop]: Abstraction has 5770 states and 15364 transitions. [2021-06-05 00:38:10,534 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:10,534 INFO L276 IsEmpty]: Start isEmpty. Operand 5770 states and 15364 transitions. [2021-06-05 00:38:10,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:10,538 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:10,538 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:10,538 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-06-05 00:38:10,538 INFO L430 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:10,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:10,538 INFO L82 PathProgramCache]: Analyzing trace with hash -969027600, now seen corresponding path program 115 times [2021-06-05 00:38:10,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:10,538 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373023929] [2021-06-05 00:38:10,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:10,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:10,827 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:10,827 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373023929] [2021-06-05 00:38:10,827 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373023929] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:10,827 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:10,827 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:10,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432086542] [2021-06-05 00:38:10,827 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:10,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:10,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:10,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:10,828 INFO L87 Difference]: Start difference. First operand 5770 states and 15364 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:11,516 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:38:11,650 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:38:11,817 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:38:11,996 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:38:12,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:12,137 INFO L93 Difference]: Finished difference Result 17528 states and 45805 transitions. [2021-06-05 00:38:12,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:12,137 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:12,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:12,152 INFO L225 Difference]: With dead ends: 17528 [2021-06-05 00:38:12,152 INFO L226 Difference]: Without dead ends: 17528 [2021-06-05 00:38:12,152 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1191.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:12,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17528 states. [2021-06-05 00:38:12,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17528 to 5896. [2021-06-05 00:38:12,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5896 states, 5894 states have (on average 2.668306752629793) internal successors, (15727), 5895 states have internal predecessors, (15727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:12,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5896 states to 5896 states and 15727 transitions. [2021-06-05 00:38:12,260 INFO L78 Accepts]: Start accepts. Automaton has 5896 states and 15727 transitions. Word has length 114 [2021-06-05 00:38:12,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:12,260 INFO L482 AbstractCegarLoop]: Abstraction has 5896 states and 15727 transitions. [2021-06-05 00:38:12,260 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:12,260 INFO L276 IsEmpty]: Start isEmpty. Operand 5896 states and 15727 transitions. [2021-06-05 00:38:12,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:12,265 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:12,265 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:12,265 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-06-05 00:38:12,265 INFO L430 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:12,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:12,265 INFO L82 PathProgramCache]: Analyzing trace with hash 944209136, now seen corresponding path program 116 times [2021-06-05 00:38:12,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:12,265 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990212096] [2021-06-05 00:38:12,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:12,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:12,559 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:12,559 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990212096] [2021-06-05 00:38:12,559 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990212096] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:12,559 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:12,559 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:12,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333068523] [2021-06-05 00:38:12,559 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:12,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:12,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:12,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:12,559 INFO L87 Difference]: Start difference. First operand 5896 states and 15727 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:13,276 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:38:13,435 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:38:13,591 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:38:13,773 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:38:13,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:13,921 INFO L93 Difference]: Finished difference Result 20152 states and 52528 transitions. [2021-06-05 00:38:13,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:13,922 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:13,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:13,939 INFO L225 Difference]: With dead ends: 20152 [2021-06-05 00:38:13,939 INFO L226 Difference]: Without dead ends: 20152 [2021-06-05 00:38:13,939 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1219.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:13,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20152 states. [2021-06-05 00:38:14,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20152 to 5912. [2021-06-05 00:38:14,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5912 states, 5910 states have (on average 2.668866328257191) internal successors, (15773), 5911 states have internal predecessors, (15773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:14,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5912 states to 5912 states and 15773 transitions. [2021-06-05 00:38:14,061 INFO L78 Accepts]: Start accepts. Automaton has 5912 states and 15773 transitions. Word has length 114 [2021-06-05 00:38:14,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:14,061 INFO L482 AbstractCegarLoop]: Abstraction has 5912 states and 15773 transitions. [2021-06-05 00:38:14,061 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:14,061 INFO L276 IsEmpty]: Start isEmpty. Operand 5912 states and 15773 transitions. [2021-06-05 00:38:14,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:14,065 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:14,065 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:14,065 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-06-05 00:38:14,065 INFO L430 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:14,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:14,065 INFO L82 PathProgramCache]: Analyzing trace with hash -1215283538, now seen corresponding path program 117 times [2021-06-05 00:38:14,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:14,065 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912486801] [2021-06-05 00:38:14,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:14,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:14,369 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:14,369 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912486801] [2021-06-05 00:38:14,369 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912486801] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:14,369 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:14,369 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:14,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252465622] [2021-06-05 00:38:14,369 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:14,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:14,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:14,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:14,370 INFO L87 Difference]: Start difference. First operand 5912 states and 15773 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:15,059 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:38:15,213 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:38:15,381 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:38:15,558 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:38:15,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:15,693 INFO L93 Difference]: Finished difference Result 18432 states and 47816 transitions. [2021-06-05 00:38:15,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:15,694 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:15,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:15,735 INFO L225 Difference]: With dead ends: 18432 [2021-06-05 00:38:15,735 INFO L226 Difference]: Without dead ends: 18432 [2021-06-05 00:38:15,735 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1221.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:15,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18432 states. [2021-06-05 00:38:15,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18432 to 5864. [2021-06-05 00:38:15,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5864 states, 5862 states have (on average 2.667178437393381) internal successors, (15635), 5863 states have internal predecessors, (15635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:15,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5864 states to 5864 states and 15635 transitions. [2021-06-05 00:38:15,828 INFO L78 Accepts]: Start accepts. Automaton has 5864 states and 15635 transitions. Word has length 114 [2021-06-05 00:38:15,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:15,828 INFO L482 AbstractCegarLoop]: Abstraction has 5864 states and 15635 transitions. [2021-06-05 00:38:15,828 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:15,828 INFO L276 IsEmpty]: Start isEmpty. Operand 5864 states and 15635 transitions. [2021-06-05 00:38:15,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:15,832 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:15,832 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:15,832 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-06-05 00:38:15,832 INFO L430 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:15,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:15,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1265955760, now seen corresponding path program 118 times [2021-06-05 00:38:15,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:15,833 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791184854] [2021-06-05 00:38:15,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:15,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:16,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:16,113 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:16,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791184854] [2021-06-05 00:38:16,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791184854] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:16,113 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:16,113 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:16,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194439039] [2021-06-05 00:38:16,113 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:16,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:16,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:16,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:16,114 INFO L87 Difference]: Start difference. First operand 5864 states and 15635 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:16,816 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:38:16,958 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:38:17,115 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:38:17,292 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:38:17,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:17,428 INFO L93 Difference]: Finished difference Result 17632 states and 45963 transitions. [2021-06-05 00:38:17,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:17,428 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:17,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:17,443 INFO L225 Difference]: With dead ends: 17632 [2021-06-05 00:38:17,443 INFO L226 Difference]: Without dead ends: 17632 [2021-06-05 00:38:17,443 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1198.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:17,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17632 states. [2021-06-05 00:38:17,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17632 to 5896. [2021-06-05 00:38:17,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5896 states, 5894 states have (on average 2.668306752629793) internal successors, (15727), 5895 states have internal predecessors, (15727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:17,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5896 states to 5896 states and 15727 transitions. [2021-06-05 00:38:17,551 INFO L78 Accepts]: Start accepts. Automaton has 5896 states and 15727 transitions. Word has length 114 [2021-06-05 00:38:17,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:17,551 INFO L482 AbstractCegarLoop]: Abstraction has 5896 states and 15727 transitions. [2021-06-05 00:38:17,551 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:17,551 INFO L276 IsEmpty]: Start isEmpty. Operand 5896 states and 15727 transitions. [2021-06-05 00:38:17,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:17,555 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:17,555 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:17,556 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-06-05 00:38:17,556 INFO L430 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:17,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:17,556 INFO L82 PathProgramCache]: Analyzing trace with hash -893536914, now seen corresponding path program 119 times [2021-06-05 00:38:17,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:17,556 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271942092] [2021-06-05 00:38:17,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:17,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:17,837 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:17,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271942092] [2021-06-05 00:38:17,837 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271942092] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:17,837 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:17,837 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:17,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580110245] [2021-06-05 00:38:17,837 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:17,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:17,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:17,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:17,838 INFO L87 Difference]: Start difference. First operand 5896 states and 15727 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:18,574 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:38:18,718 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:38:18,890 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:38:19,066 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:38:19,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:19,219 INFO L93 Difference]: Finished difference Result 18478 states and 47823 transitions. [2021-06-05 00:38:19,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:19,219 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:19,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:19,235 INFO L225 Difference]: With dead ends: 18478 [2021-06-05 00:38:19,235 INFO L226 Difference]: Without dead ends: 18478 [2021-06-05 00:38:19,235 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1209.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:19,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18478 states. [2021-06-05 00:38:19,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18478 to 5880. [2021-06-05 00:38:19,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5880 states, 5878 states have (on average 2.667744130656686) internal successors, (15681), 5879 states have internal predecessors, (15681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:19,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5880 states to 5880 states and 15681 transitions. [2021-06-05 00:38:19,346 INFO L78 Accepts]: Start accepts. Automaton has 5880 states and 15681 transitions. Word has length 114 [2021-06-05 00:38:19,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:19,346 INFO L482 AbstractCegarLoop]: Abstraction has 5880 states and 15681 transitions. [2021-06-05 00:38:19,346 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:19,346 INFO L276 IsEmpty]: Start isEmpty. Operand 5880 states and 15681 transitions. [2021-06-05 00:38:19,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:19,351 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:19,351 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:19,351 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-06-05 00:38:19,351 INFO L430 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:19,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:19,351 INFO L82 PathProgramCache]: Analyzing trace with hash -95673454, now seen corresponding path program 120 times [2021-06-05 00:38:19,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:19,351 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992100882] [2021-06-05 00:38:19,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:19,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:19,632 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:19,632 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992100882] [2021-06-05 00:38:19,633 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992100882] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:19,633 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:19,633 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:19,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456848861] [2021-06-05 00:38:19,633 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:19,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:19,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:19,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:19,633 INFO L87 Difference]: Start difference. First operand 5880 states and 15681 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:20,350 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:38:20,496 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:38:20,664 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:38:20,843 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:38:20,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:20,993 INFO L93 Difference]: Finished difference Result 17778 states and 46194 transitions. [2021-06-05 00:38:20,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:20,993 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:20,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:21,009 INFO L225 Difference]: With dead ends: 17778 [2021-06-05 00:38:21,009 INFO L226 Difference]: Without dead ends: 17778 [2021-06-05 00:38:21,009 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1208.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:21,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17778 states. [2021-06-05 00:38:21,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17778 to 5896. [2021-06-05 00:38:21,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5896 states, 5894 states have (on average 2.668306752629793) internal successors, (15727), 5895 states have internal predecessors, (15727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:21,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5896 states to 5896 states and 15727 transitions. [2021-06-05 00:38:21,127 INFO L78 Accepts]: Start accepts. Automaton has 5896 states and 15727 transitions. Word has length 114 [2021-06-05 00:38:21,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:21,127 INFO L482 AbstractCegarLoop]: Abstraction has 5896 states and 15727 transitions. [2021-06-05 00:38:21,127 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:21,127 INFO L276 IsEmpty]: Start isEmpty. Operand 5896 states and 15727 transitions. [2021-06-05 00:38:21,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:21,131 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:21,131 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:21,131 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-06-05 00:38:21,131 INFO L430 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:21,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:21,132 INFO L82 PathProgramCache]: Analyzing trace with hash -344220434, now seen corresponding path program 121 times [2021-06-05 00:38:21,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:21,132 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188125415] [2021-06-05 00:38:21,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:21,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:21,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:21,411 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:21,411 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188125415] [2021-06-05 00:38:21,411 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188125415] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:21,412 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:21,412 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:21,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188370163] [2021-06-05 00:38:21,412 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:21,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:21,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:21,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:21,412 INFO L87 Difference]: Start difference. First operand 5896 states and 15727 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:22,125 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:38:22,269 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:38:22,426 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:38:22,606 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:38:22,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:22,742 INFO L93 Difference]: Finished difference Result 15036 states and 39282 transitions. [2021-06-05 00:38:22,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:22,742 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:22,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:22,755 INFO L225 Difference]: With dead ends: 15036 [2021-06-05 00:38:22,755 INFO L226 Difference]: Without dead ends: 15036 [2021-06-05 00:38:22,755 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1194.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:22,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15036 states. [2021-06-05 00:38:22,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15036 to 5832. [2021-06-05 00:38:22,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5832 states, 5830 states have (on average 2.6660377358490566) internal successors, (15543), 5831 states have internal predecessors, (15543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:22,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5832 states to 5832 states and 15543 transitions. [2021-06-05 00:38:22,849 INFO L78 Accepts]: Start accepts. Automaton has 5832 states and 15543 transitions. Word has length 114 [2021-06-05 00:38:22,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:22,849 INFO L482 AbstractCegarLoop]: Abstraction has 5832 states and 15543 transitions. [2021-06-05 00:38:22,849 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:22,850 INFO L276 IsEmpty]: Start isEmpty. Operand 5832 states and 15543 transitions. [2021-06-05 00:38:22,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:22,854 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:22,854 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:22,854 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-06-05 00:38:22,854 INFO L430 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:22,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:22,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1063705838, now seen corresponding path program 122 times [2021-06-05 00:38:22,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:22,854 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004509936] [2021-06-05 00:38:22,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:23,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:23,161 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:23,161 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004509936] [2021-06-05 00:38:23,161 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004509936] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:23,161 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:23,161 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:23,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980803720] [2021-06-05 00:38:23,161 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:23,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:23,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:23,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:23,162 INFO L87 Difference]: Start difference. First operand 5832 states and 15543 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:23,895 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:38:24,032 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:38:24,208 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:38:24,392 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:38:24,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:24,538 INFO L93 Difference]: Finished difference Result 16228 states and 42674 transitions. [2021-06-05 00:38:24,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:24,538 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:24,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:24,553 INFO L225 Difference]: With dead ends: 16228 [2021-06-05 00:38:24,553 INFO L226 Difference]: Without dead ends: 16228 [2021-06-05 00:38:24,553 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1231.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:24,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16228 states. [2021-06-05 00:38:24,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16228 to 5880. [2021-06-05 00:38:24,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5880 states, 5878 states have (on average 2.667744130656686) internal successors, (15681), 5879 states have internal predecessors, (15681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:24,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5880 states to 5880 states and 15681 transitions. [2021-06-05 00:38:24,659 INFO L78 Accepts]: Start accepts. Automaton has 5880 states and 15681 transitions. Word has length 114 [2021-06-05 00:38:24,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:24,660 INFO L482 AbstractCegarLoop]: Abstraction has 5880 states and 15681 transitions. [2021-06-05 00:38:24,660 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:24,660 INFO L276 IsEmpty]: Start isEmpty. Operand 5880 states and 15681 transitions. [2021-06-05 00:38:24,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:24,664 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:24,664 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:24,664 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-06-05 00:38:24,664 INFO L430 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:24,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:24,664 INFO L82 PathProgramCache]: Analyzing trace with hash 849530898, now seen corresponding path program 123 times [2021-06-05 00:38:24,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:24,665 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113966346] [2021-06-05 00:38:24,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:24,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:24,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:24,965 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:24,965 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113966346] [2021-06-05 00:38:24,965 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113966346] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:24,965 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:24,965 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:24,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037924142] [2021-06-05 00:38:24,965 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:24,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:24,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:24,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:24,966 INFO L87 Difference]: Start difference. First operand 5880 states and 15681 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:25,657 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:38:25,813 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:38:25,971 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:38:26,151 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:38:26,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:26,289 INFO L93 Difference]: Finished difference Result 16304 states and 42810 transitions. [2021-06-05 00:38:26,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:26,290 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:26,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:26,305 INFO L225 Difference]: With dead ends: 16304 [2021-06-05 00:38:26,305 INFO L226 Difference]: Without dead ends: 16304 [2021-06-05 00:38:26,305 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1213.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:26,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16304 states. [2021-06-05 00:38:26,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16304 to 5896. [2021-06-05 00:38:26,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5896 states, 5894 states have (on average 2.668306752629793) internal successors, (15727), 5895 states have internal predecessors, (15727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:26,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5896 states to 5896 states and 15727 transitions. [2021-06-05 00:38:26,425 INFO L78 Accepts]: Start accepts. Automaton has 5896 states and 15727 transitions. Word has length 114 [2021-06-05 00:38:26,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:26,425 INFO L482 AbstractCegarLoop]: Abstraction has 5896 states and 15727 transitions. [2021-06-05 00:38:26,425 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:26,426 INFO L276 IsEmpty]: Start isEmpty. Operand 5896 states and 15727 transitions. [2021-06-05 00:38:26,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:26,430 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:26,430 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:26,430 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-06-05 00:38:26,430 INFO L430 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:26,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:26,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1309961776, now seen corresponding path program 124 times [2021-06-05 00:38:26,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:26,430 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163667964] [2021-06-05 00:38:26,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:26,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:26,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:26,737 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:26,737 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163667964] [2021-06-05 00:38:26,737 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163667964] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:26,737 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:26,737 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:26,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383521084] [2021-06-05 00:38:26,737 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:26,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:26,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:26,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:26,738 INFO L87 Difference]: Start difference. First operand 5896 states and 15727 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:27,439 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:38:27,600 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:38:27,772 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:38:27,948 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:38:28,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:28,094 INFO L93 Difference]: Finished difference Result 15688 states and 40836 transitions. [2021-06-05 00:38:28,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:28,094 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:28,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:28,107 INFO L225 Difference]: With dead ends: 15688 [2021-06-05 00:38:28,107 INFO L226 Difference]: Without dead ends: 15688 [2021-06-05 00:38:28,107 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1221.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:28,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15688 states. [2021-06-05 00:38:28,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15688 to 5848. [2021-06-05 00:38:28,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5848 states, 5846 states have (on average 2.666609647622306) internal successors, (15589), 5847 states have internal predecessors, (15589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:28,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5848 states to 5848 states and 15589 transitions. [2021-06-05 00:38:28,203 INFO L78 Accepts]: Start accepts. Automaton has 5848 states and 15589 transitions. Word has length 114 [2021-06-05 00:38:28,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:28,203 INFO L482 AbstractCegarLoop]: Abstraction has 5848 states and 15589 transitions. [2021-06-05 00:38:28,203 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:28,204 INFO L276 IsEmpty]: Start isEmpty. Operand 5848 states and 15589 transitions. [2021-06-05 00:38:28,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:28,207 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:28,207 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:28,208 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-06-05 00:38:28,208 INFO L430 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:28,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:28,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1442523152, now seen corresponding path program 125 times [2021-06-05 00:38:28,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:28,208 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398897297] [2021-06-05 00:38:28,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:28,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:28,520 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:28,520 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398897297] [2021-06-05 00:38:28,520 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398897297] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:28,520 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:28,520 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:28,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239361504] [2021-06-05 00:38:28,521 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:28,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:28,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:28,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:28,521 INFO L87 Difference]: Start difference. First operand 5848 states and 15589 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:29,370 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:38:29,545 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:38:29,724 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:38:29,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:29,853 INFO L93 Difference]: Finished difference Result 12448 states and 32589 transitions. [2021-06-05 00:38:29,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:29,854 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:29,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:29,863 INFO L225 Difference]: With dead ends: 12448 [2021-06-05 00:38:29,864 INFO L226 Difference]: Without dead ends: 12448 [2021-06-05 00:38:29,864 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1218.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:29,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12448 states. [2021-06-05 00:38:29,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12448 to 5816. [2021-06-05 00:38:29,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5816 states, 5814 states have (on average 2.66546267629859) internal successors, (15497), 5815 states have internal predecessors, (15497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:29,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5816 states to 5816 states and 15497 transitions. [2021-06-05 00:38:29,945 INFO L78 Accepts]: Start accepts. Automaton has 5816 states and 15497 transitions. Word has length 114 [2021-06-05 00:38:29,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:29,945 INFO L482 AbstractCegarLoop]: Abstraction has 5816 states and 15497 transitions. [2021-06-05 00:38:29,945 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:29,945 INFO L276 IsEmpty]: Start isEmpty. Operand 5816 states and 15497 transitions. [2021-06-05 00:38:29,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:29,949 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:29,949 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:29,949 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-06-05 00:38:29,949 INFO L430 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:29,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:29,949 INFO L82 PathProgramCache]: Analyzing trace with hash -131006960, now seen corresponding path program 126 times [2021-06-05 00:38:29,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:29,950 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483274463] [2021-06-05 00:38:29,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:29,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:30,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:30,239 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:30,239 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483274463] [2021-06-05 00:38:30,240 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483274463] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:30,240 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:30,240 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:30,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183200722] [2021-06-05 00:38:30,240 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:30,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:30,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:30,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:30,240 INFO L87 Difference]: Start difference. First operand 5816 states and 15497 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:30,945 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:38:31,079 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:38:31,247 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:38:31,430 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:38:31,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:31,574 INFO L93 Difference]: Finished difference Result 16948 states and 44081 transitions. [2021-06-05 00:38:31,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:31,574 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:31,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:31,590 INFO L225 Difference]: With dead ends: 16948 [2021-06-05 00:38:31,590 INFO L226 Difference]: Without dead ends: 16948 [2021-06-05 00:38:31,590 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1201.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:31,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16948 states. [2021-06-05 00:38:31,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16948 to 5944. [2021-06-05 00:38:31,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5944 states, 5942 states have (on average 2.6699764389094582) internal successors, (15865), 5943 states have internal predecessors, (15865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:31,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5944 states to 5944 states and 15865 transitions. [2021-06-05 00:38:31,718 INFO L78 Accepts]: Start accepts. Automaton has 5944 states and 15865 transitions. Word has length 114 [2021-06-05 00:38:31,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:31,718 INFO L482 AbstractCegarLoop]: Abstraction has 5944 states and 15865 transitions. [2021-06-05 00:38:31,718 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:31,718 INFO L276 IsEmpty]: Start isEmpty. Operand 5944 states and 15865 transitions. [2021-06-05 00:38:31,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:31,722 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:31,723 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:31,723 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-06-05 00:38:31,723 INFO L430 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:31,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:31,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1782229776, now seen corresponding path program 127 times [2021-06-05 00:38:31,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:31,723 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644587548] [2021-06-05 00:38:31,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:32,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:32,014 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:32,014 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644587548] [2021-06-05 00:38:32,014 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644587548] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:32,014 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:32,014 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:32,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569522759] [2021-06-05 00:38:32,014 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:32,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:32,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:32,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:32,015 INFO L87 Difference]: Start difference. First operand 5944 states and 15865 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:32,732 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:38:32,893 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:38:33,054 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:38:33,239 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:38:33,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:33,396 INFO L93 Difference]: Finished difference Result 19572 states and 50804 transitions. [2021-06-05 00:38:33,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:33,396 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:33,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:33,414 INFO L225 Difference]: With dead ends: 19572 [2021-06-05 00:38:33,414 INFO L226 Difference]: Without dead ends: 19572 [2021-06-05 00:38:33,415 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1209.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:33,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19572 states. [2021-06-05 00:38:33,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19572 to 5960. [2021-06-05 00:38:33,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5960 states, 5958 states have (on average 2.6705270224907687) internal successors, (15911), 5959 states have internal predecessors, (15911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:33,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5960 states to 5960 states and 15911 transitions. [2021-06-05 00:38:33,537 INFO L78 Accepts]: Start accepts. Automaton has 5960 states and 15911 transitions. Word has length 114 [2021-06-05 00:38:33,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:33,537 INFO L482 AbstractCegarLoop]: Abstraction has 5960 states and 15911 transitions. [2021-06-05 00:38:33,538 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:33,538 INFO L276 IsEmpty]: Start isEmpty. Operand 5960 states and 15911 transitions. [2021-06-05 00:38:33,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:33,542 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:33,542 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:33,542 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-06-05 00:38:33,542 INFO L430 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:33,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:33,542 INFO L82 PathProgramCache]: Analyzing trace with hash -377262898, now seen corresponding path program 128 times [2021-06-05 00:38:33,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:33,542 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696827086] [2021-06-05 00:38:33,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:33,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:33,838 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:33,839 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696827086] [2021-06-05 00:38:33,839 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696827086] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:33,839 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:33,839 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:33,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007626893] [2021-06-05 00:38:33,839 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:33,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:33,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:33,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:33,839 INFO L87 Difference]: Start difference. First operand 5960 states and 15911 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:34,437 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-06-05 00:38:34,571 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:38:34,728 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:38:34,898 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:38:35,077 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:38:35,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:35,232 INFO L93 Difference]: Finished difference Result 17852 states and 46092 transitions. [2021-06-05 00:38:35,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:35,233 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:35,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:35,249 INFO L225 Difference]: With dead ends: 17852 [2021-06-05 00:38:35,249 INFO L226 Difference]: Without dead ends: 17852 [2021-06-05 00:38:35,249 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1227.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:35,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17852 states. [2021-06-05 00:38:35,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17852 to 5912. [2021-06-05 00:38:35,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5912 states, 5910 states have (on average 2.668866328257191) internal successors, (15773), 5911 states have internal predecessors, (15773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:35,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5912 states to 5912 states and 15773 transitions. [2021-06-05 00:38:35,359 INFO L78 Accepts]: Start accepts. Automaton has 5912 states and 15773 transitions. Word has length 114 [2021-06-05 00:38:35,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:35,359 INFO L482 AbstractCegarLoop]: Abstraction has 5912 states and 15773 transitions. [2021-06-05 00:38:35,359 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:35,359 INFO L276 IsEmpty]: Start isEmpty. Operand 5912 states and 15773 transitions. [2021-06-05 00:38:35,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:35,363 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:35,363 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:35,364 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-06-05 00:38:35,364 INFO L430 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:35,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:35,364 INFO L82 PathProgramCache]: Analyzing trace with hash 2103976400, now seen corresponding path program 129 times [2021-06-05 00:38:35,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:35,364 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229111314] [2021-06-05 00:38:35,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:35,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:35,650 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:35,650 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229111314] [2021-06-05 00:38:35,650 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229111314] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:35,650 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:35,650 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:35,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591463075] [2021-06-05 00:38:35,650 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:35,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:35,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:35,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:35,651 INFO L87 Difference]: Start difference. First operand 5912 states and 15773 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:36,355 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:38:36,498 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:38:36,659 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:38:36,839 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:38:36,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:36,990 INFO L93 Difference]: Finished difference Result 20928 states and 54021 transitions. [2021-06-05 00:38:36,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:36,990 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:36,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:37,009 INFO L225 Difference]: With dead ends: 20928 [2021-06-05 00:38:37,009 INFO L226 Difference]: Without dead ends: 20928 [2021-06-05 00:38:37,009 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1203.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:37,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20928 states. [2021-06-05 00:38:37,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20928 to 5944. [2021-06-05 00:38:37,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5944 states, 5942 states have (on average 2.6699764389094582) internal successors, (15865), 5943 states have internal predecessors, (15865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:37,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5944 states to 5944 states and 15865 transitions. [2021-06-05 00:38:37,148 INFO L78 Accepts]: Start accepts. Automaton has 5944 states and 15865 transitions. Word has length 114 [2021-06-05 00:38:37,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:37,148 INFO L482 AbstractCegarLoop]: Abstraction has 5944 states and 15865 transitions. [2021-06-05 00:38:37,148 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:37,148 INFO L276 IsEmpty]: Start isEmpty. Operand 5944 states and 15865 transitions. [2021-06-05 00:38:37,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:37,152 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:37,152 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:37,152 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-06-05 00:38:37,152 INFO L430 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:37,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:37,153 INFO L82 PathProgramCache]: Analyzing trace with hash -55516274, now seen corresponding path program 130 times [2021-06-05 00:38:37,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:37,153 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113251279] [2021-06-05 00:38:37,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:37,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:37,435 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:37,435 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113251279] [2021-06-05 00:38:37,435 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113251279] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:37,435 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:37,435 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:37,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382829583] [2021-06-05 00:38:37,435 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:37,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:37,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:37,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:37,436 INFO L87 Difference]: Start difference. First operand 5944 states and 15865 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:38,161 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:38:38,306 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:38:38,480 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:38:38,657 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:38:38,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:38,826 INFO L93 Difference]: Finished difference Result 21774 states and 55881 transitions. [2021-06-05 00:38:38,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:38,827 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:38,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:38,846 INFO L225 Difference]: With dead ends: 21774 [2021-06-05 00:38:38,846 INFO L226 Difference]: Without dead ends: 21774 [2021-06-05 00:38:38,846 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1203.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:38,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21774 states. [2021-06-05 00:38:38,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21774 to 5928. [2021-06-05 00:38:38,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5928 states, 5926 states have (on average 2.6694228822139725) internal successors, (15819), 5927 states have internal predecessors, (15819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:38,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5928 states to 5928 states and 15819 transitions. [2021-06-05 00:38:38,974 INFO L78 Accepts]: Start accepts. Automaton has 5928 states and 15819 transitions. Word has length 114 [2021-06-05 00:38:38,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:38,974 INFO L482 AbstractCegarLoop]: Abstraction has 5928 states and 15819 transitions. [2021-06-05 00:38:38,974 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:38,974 INFO L276 IsEmpty]: Start isEmpty. Operand 5928 states and 15819 transitions. [2021-06-05 00:38:38,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:38,979 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:38,979 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:38,979 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-06-05 00:38:38,979 INFO L430 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:38,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:38,980 INFO L82 PathProgramCache]: Analyzing trace with hash 742347186, now seen corresponding path program 131 times [2021-06-05 00:38:38,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:38,980 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997694479] [2021-06-05 00:38:38,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:39,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:39,260 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:39,260 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997694479] [2021-06-05 00:38:39,260 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997694479] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:39,260 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:39,260 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:39,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142162056] [2021-06-05 00:38:39,260 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:39,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:39,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:39,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:39,261 INFO L87 Difference]: Start difference. First operand 5928 states and 15819 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:40,001 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:38:40,148 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:38:40,317 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:38:40,498 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:38:40,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:40,664 INFO L93 Difference]: Finished difference Result 21074 states and 54252 transitions. [2021-06-05 00:38:40,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:40,664 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:40,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:40,684 INFO L225 Difference]: With dead ends: 21074 [2021-06-05 00:38:40,684 INFO L226 Difference]: Without dead ends: 21074 [2021-06-05 00:38:40,684 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1220.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:40,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21074 states. [2021-06-05 00:38:40,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21074 to 5944. [2021-06-05 00:38:40,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5944 states, 5942 states have (on average 2.6699764389094582) internal successors, (15865), 5943 states have internal predecessors, (15865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:40,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5944 states to 5944 states and 15865 transitions. [2021-06-05 00:38:40,804 INFO L78 Accepts]: Start accepts. Automaton has 5944 states and 15865 transitions. Word has length 114 [2021-06-05 00:38:40,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:40,804 INFO L482 AbstractCegarLoop]: Abstraction has 5944 states and 15865 transitions. [2021-06-05 00:38:40,804 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:40,804 INFO L276 IsEmpty]: Start isEmpty. Operand 5944 states and 15865 transitions. [2021-06-05 00:38:40,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:40,809 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:40,809 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:40,809 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-06-05 00:38:40,809 INFO L430 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:40,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:40,809 INFO L82 PathProgramCache]: Analyzing trace with hash 493800206, now seen corresponding path program 132 times [2021-06-05 00:38:40,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:40,809 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068728664] [2021-06-05 00:38:40,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:40,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:41,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:41,087 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:41,087 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068728664] [2021-06-05 00:38:41,088 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068728664] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:41,088 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:41,088 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:41,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989459557] [2021-06-05 00:38:41,088 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:41,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:41,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:41,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:41,088 INFO L87 Difference]: Start difference. First operand 5944 states and 15865 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:41,788 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:38:41,934 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:38:42,094 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:38:42,274 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:38:42,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:42,404 INFO L93 Difference]: Finished difference Result 18032 states and 46590 transitions. [2021-06-05 00:38:42,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:42,405 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:42,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:42,421 INFO L225 Difference]: With dead ends: 18032 [2021-06-05 00:38:42,422 INFO L226 Difference]: Without dead ends: 18032 [2021-06-05 00:38:42,422 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1201.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:42,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18032 states. [2021-06-05 00:38:42,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18032 to 5880. [2021-06-05 00:38:42,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5880 states, 5878 states have (on average 2.667744130656686) internal successors, (15681), 5879 states have internal predecessors, (15681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:42,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5880 states to 5880 states and 15681 transitions. [2021-06-05 00:38:42,546 INFO L78 Accepts]: Start accepts. Automaton has 5880 states and 15681 transitions. Word has length 114 [2021-06-05 00:38:42,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:42,546 INFO L482 AbstractCegarLoop]: Abstraction has 5880 states and 15681 transitions. [2021-06-05 00:38:42,546 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:42,546 INFO L276 IsEmpty]: Start isEmpty. Operand 5880 states and 15681 transitions. [2021-06-05 00:38:42,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:42,550 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:42,550 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:42,550 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-06-05 00:38:42,551 INFO L430 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:42,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:42,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1968774226, now seen corresponding path program 133 times [2021-06-05 00:38:42,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:42,551 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875441273] [2021-06-05 00:38:42,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:42,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:42,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:42,833 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:42,833 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875441273] [2021-06-05 00:38:42,834 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875441273] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:42,834 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:42,834 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:42,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253068988] [2021-06-05 00:38:42,834 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:42,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:42,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:42,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:42,834 INFO L87 Difference]: Start difference. First operand 5880 states and 15681 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:43,542 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:38:43,687 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:38:43,846 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:38:44,024 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:38:44,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:44,159 INFO L93 Difference]: Finished difference Result 16508 states and 42855 transitions. [2021-06-05 00:38:44,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:44,159 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:44,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:44,174 INFO L225 Difference]: With dead ends: 16508 [2021-06-05 00:38:44,174 INFO L226 Difference]: Without dead ends: 16508 [2021-06-05 00:38:44,174 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1207.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:44,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16508 states. [2021-06-05 00:38:44,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16508 to 5944. [2021-06-05 00:38:44,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5944 states, 5942 states have (on average 2.6699764389094582) internal successors, (15865), 5943 states have internal predecessors, (15865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:44,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5944 states to 5944 states and 15865 transitions. [2021-06-05 00:38:44,277 INFO L78 Accepts]: Start accepts. Automaton has 5944 states and 15865 transitions. Word has length 114 [2021-06-05 00:38:44,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:44,278 INFO L482 AbstractCegarLoop]: Abstraction has 5944 states and 15865 transitions. [2021-06-05 00:38:44,278 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:44,278 INFO L276 IsEmpty]: Start isEmpty. Operand 5944 states and 15865 transitions. [2021-06-05 00:38:44,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:44,282 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:44,282 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:44,282 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-06-05 00:38:44,282 INFO L430 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:44,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:44,283 INFO L82 PathProgramCache]: Analyzing trace with hash -190718448, now seen corresponding path program 134 times [2021-06-05 00:38:44,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:44,283 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030171977] [2021-06-05 00:38:44,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:44,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:44,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:44,570 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:44,570 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030171977] [2021-06-05 00:38:44,570 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030171977] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:44,570 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:44,570 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:44,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591518383] [2021-06-05 00:38:44,570 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:44,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:44,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:44,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:44,571 INFO L87 Difference]: Start difference. First operand 5944 states and 15865 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:45,051 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-06-05 00:38:45,325 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:38:45,471 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:38:45,644 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:38:45,823 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:38:45,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:45,974 INFO L93 Difference]: Finished difference Result 17354 states and 44715 transitions. [2021-06-05 00:38:45,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:45,974 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:45,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:45,990 INFO L225 Difference]: With dead ends: 17354 [2021-06-05 00:38:45,991 INFO L226 Difference]: Without dead ends: 17354 [2021-06-05 00:38:45,991 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1245.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:46,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17354 states. [2021-06-05 00:38:46,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17354 to 5928. [2021-06-05 00:38:46,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5928 states, 5926 states have (on average 2.6694228822139725) internal successors, (15819), 5927 states have internal predecessors, (15819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:46,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5928 states to 5928 states and 15819 transitions. [2021-06-05 00:38:46,103 INFO L78 Accepts]: Start accepts. Automaton has 5928 states and 15819 transitions. Word has length 114 [2021-06-05 00:38:46,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:46,103 INFO L482 AbstractCegarLoop]: Abstraction has 5928 states and 15819 transitions. [2021-06-05 00:38:46,103 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:46,103 INFO L276 IsEmpty]: Start isEmpty. Operand 5928 states and 15819 transitions. [2021-06-05 00:38:46,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:46,107 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:46,107 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:46,108 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-06-05 00:38:46,108 INFO L430 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:46,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:46,108 INFO L82 PathProgramCache]: Analyzing trace with hash 607145012, now seen corresponding path program 135 times [2021-06-05 00:38:46,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:46,108 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470725724] [2021-06-05 00:38:46,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:46,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:46,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:46,394 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:46,394 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470725724] [2021-06-05 00:38:46,394 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470725724] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:46,394 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:46,394 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:46,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851467232] [2021-06-05 00:38:46,394 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:46,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:46,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:46,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:46,394 INFO L87 Difference]: Start difference. First operand 5928 states and 15819 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:47,122 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:38:47,272 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:38:47,445 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:38:47,627 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:38:47,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:47,793 INFO L93 Difference]: Finished difference Result 20560 states and 52829 transitions. [2021-06-05 00:38:47,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:47,794 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:47,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:47,813 INFO L225 Difference]: With dead ends: 20560 [2021-06-05 00:38:47,813 INFO L226 Difference]: Without dead ends: 20560 [2021-06-05 00:38:47,813 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1226.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:47,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20560 states. [2021-06-05 00:38:47,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20560 to 5944. [2021-06-05 00:38:47,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5944 states, 5942 states have (on average 2.6699764389094582) internal successors, (15865), 5943 states have internal predecessors, (15865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:47,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5944 states to 5944 states and 15865 transitions. [2021-06-05 00:38:47,952 INFO L78 Accepts]: Start accepts. Automaton has 5944 states and 15865 transitions. Word has length 114 [2021-06-05 00:38:47,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:47,952 INFO L482 AbstractCegarLoop]: Abstraction has 5944 states and 15865 transitions. [2021-06-05 00:38:47,952 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:47,952 INFO L276 IsEmpty]: Start isEmpty. Operand 5944 states and 15865 transitions. [2021-06-05 00:38:47,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:47,956 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:47,957 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:47,957 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-06-05 00:38:47,957 INFO L430 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:47,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:47,957 INFO L82 PathProgramCache]: Analyzing trace with hash 358598032, now seen corresponding path program 136 times [2021-06-05 00:38:47,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:47,957 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534188] [2021-06-05 00:38:47,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:47,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:48,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:48,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:48,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534188] [2021-06-05 00:38:48,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534188] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:48,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:48,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:48,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37412876] [2021-06-05 00:38:48,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:48,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:48,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:48,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:48,236 INFO L87 Difference]: Start difference. First operand 5944 states and 15865 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:48,944 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:38:49,092 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:38:49,250 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:38:49,429 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:38:49,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:49,559 INFO L93 Difference]: Finished difference Result 17518 states and 45167 transitions. [2021-06-05 00:38:49,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:49,560 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:49,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:49,575 INFO L225 Difference]: With dead ends: 17518 [2021-06-05 00:38:49,575 INFO L226 Difference]: Without dead ends: 17518 [2021-06-05 00:38:49,576 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1209.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:49,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17518 states. [2021-06-05 00:38:49,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17518 to 5912. [2021-06-05 00:38:49,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5912 states, 5910 states have (on average 2.668866328257191) internal successors, (15773), 5911 states have internal predecessors, (15773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:49,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5912 states to 5912 states and 15773 transitions. [2021-06-05 00:38:49,687 INFO L78 Accepts]: Start accepts. Automaton has 5912 states and 15773 transitions. Word has length 114 [2021-06-05 00:38:49,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:49,687 INFO L482 AbstractCegarLoop]: Abstraction has 5912 states and 15773 transitions. [2021-06-05 00:38:49,688 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:49,688 INFO L276 IsEmpty]: Start isEmpty. Operand 5912 states and 15773 transitions. [2021-06-05 00:38:49,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:49,692 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:49,692 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:49,692 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-06-05 00:38:49,692 INFO L430 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:49,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:49,692 INFO L82 PathProgramCache]: Analyzing trace with hash -661672274, now seen corresponding path program 137 times [2021-06-05 00:38:49,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:49,692 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170857007] [2021-06-05 00:38:49,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:49,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:49,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:49,988 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:49,988 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170857007] [2021-06-05 00:38:49,988 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170857007] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:49,988 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:49,988 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:49,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448563642] [2021-06-05 00:38:49,988 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:49,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:49,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:49,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:49,989 INFO L87 Difference]: Start difference. First operand 5912 states and 15773 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:50,716 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:38:50,873 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:38:51,047 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:38:51,230 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:38:51,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:51,378 INFO L93 Difference]: Finished difference Result 16638 states and 43040 transitions. [2021-06-05 00:38:51,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:51,379 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:51,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:51,392 INFO L225 Difference]: With dead ends: 16638 [2021-06-05 00:38:51,392 INFO L226 Difference]: Without dead ends: 16638 [2021-06-05 00:38:51,393 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1243.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:51,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16638 states. [2021-06-05 00:38:51,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16638 to 5960. [2021-06-05 00:38:51,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5960 states, 5958 states have (on average 2.6705270224907687) internal successors, (15911), 5959 states have internal predecessors, (15911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:51,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5960 states to 5960 states and 15911 transitions. [2021-06-05 00:38:51,493 INFO L78 Accepts]: Start accepts. Automaton has 5960 states and 15911 transitions. Word has length 114 [2021-06-05 00:38:51,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:51,493 INFO L482 AbstractCegarLoop]: Abstraction has 5960 states and 15911 transitions. [2021-06-05 00:38:51,493 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:51,493 INFO L276 IsEmpty]: Start isEmpty. Operand 5960 states and 15911 transitions. [2021-06-05 00:38:51,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:51,497 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:51,497 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:51,497 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-06-05 00:38:51,497 INFO L430 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:51,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:51,498 INFO L82 PathProgramCache]: Analyzing trace with hash -910219254, now seen corresponding path program 138 times [2021-06-05 00:38:51,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:51,498 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974193918] [2021-06-05 00:38:51,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:51,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:51,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:51,788 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:51,788 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974193918] [2021-06-05 00:38:51,789 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974193918] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:51,789 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:51,789 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:51,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594452770] [2021-06-05 00:38:51,789 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:51,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:51,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:51,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:51,789 INFO L87 Difference]: Start difference. First operand 5960 states and 15911 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:52,506 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:38:52,664 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:38:52,826 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:38:53,008 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:38:53,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:53,142 INFO L93 Difference]: Finished difference Result 16474 states and 42638 transitions. [2021-06-05 00:38:53,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:53,143 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:53,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:53,158 INFO L225 Difference]: With dead ends: 16474 [2021-06-05 00:38:53,159 INFO L226 Difference]: Without dead ends: 16474 [2021-06-05 00:38:53,159 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1221.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:53,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16474 states. [2021-06-05 00:38:53,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16474 to 5944. [2021-06-05 00:38:53,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5944 states, 5942 states have (on average 2.6699764389094582) internal successors, (15865), 5943 states have internal predecessors, (15865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:53,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5944 states to 5944 states and 15865 transitions. [2021-06-05 00:38:53,280 INFO L78 Accepts]: Start accepts. Automaton has 5944 states and 15865 transitions. Word has length 114 [2021-06-05 00:38:53,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:53,280 INFO L482 AbstractCegarLoop]: Abstraction has 5944 states and 15865 transitions. [2021-06-05 00:38:53,280 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:53,280 INFO L276 IsEmpty]: Start isEmpty. Operand 5944 states and 15865 transitions. [2021-06-05 00:38:53,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:53,285 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:53,285 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:53,285 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-06-05 00:38:53,285 INFO L430 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:53,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:53,285 INFO L82 PathProgramCache]: Analyzing trace with hash -2067036558, now seen corresponding path program 139 times [2021-06-05 00:38:53,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:53,285 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660723378] [2021-06-05 00:38:53,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:53,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:53,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:53,601 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:53,601 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660723378] [2021-06-05 00:38:53,601 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660723378] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:53,601 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:53,601 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:53,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109959768] [2021-06-05 00:38:53,601 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:53,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:53,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:53,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:53,602 INFO L87 Difference]: Start difference. First operand 5944 states and 15865 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:54,302 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:38:54,439 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:38:54,611 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:38:54,796 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:38:54,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:54,910 INFO L93 Difference]: Finished difference Result 13532 states and 35210 transitions. [2021-06-05 00:38:54,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:54,911 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:54,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:54,922 INFO L225 Difference]: With dead ends: 13532 [2021-06-05 00:38:54,922 INFO L226 Difference]: Without dead ends: 13532 [2021-06-05 00:38:54,922 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1237.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:54,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13532 states. [2021-06-05 00:38:55,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13532 to 5784. [2021-06-05 00:38:55,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5784 states, 5782 states have (on average 2.6643030093393287) internal successors, (15405), 5783 states have internal predecessors, (15405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:55,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5784 states to 5784 states and 15405 transitions. [2021-06-05 00:38:55,013 INFO L78 Accepts]: Start accepts. Automaton has 5784 states and 15405 transitions. Word has length 114 [2021-06-05 00:38:55,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:55,014 INFO L482 AbstractCegarLoop]: Abstraction has 5784 states and 15405 transitions. [2021-06-05 00:38:55,014 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:55,014 INFO L276 IsEmpty]: Start isEmpty. Operand 5784 states and 15405 transitions. [2021-06-05 00:38:55,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:55,018 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:55,018 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:55,018 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-06-05 00:38:55,018 INFO L430 AbstractCegarLoop]: === Iteration 146 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:55,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:55,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1166052334, now seen corresponding path program 140 times [2021-06-05 00:38:55,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:55,019 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367588903] [2021-06-05 00:38:55,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:55,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:55,323 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:55,323 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367588903] [2021-06-05 00:38:55,323 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367588903] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:55,323 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:55,323 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:55,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781793842] [2021-06-05 00:38:55,323 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:55,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:55,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:55,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:55,324 INFO L87 Difference]: Start difference. First operand 5784 states and 15405 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:56,050 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:38:56,188 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:38:56,361 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:38:56,542 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:38:56,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:56,669 INFO L93 Difference]: Finished difference Result 11386 states and 29736 transitions. [2021-06-05 00:38:56,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:56,670 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:56,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:56,679 INFO L225 Difference]: With dead ends: 11386 [2021-06-05 00:38:56,679 INFO L226 Difference]: Without dead ends: 11386 [2021-06-05 00:38:56,679 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1216.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:56,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11386 states. [2021-06-05 00:38:56,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11386 to 5940. [2021-06-05 00:38:56,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5940 states, 5938 states have (on average 2.6700909397103403) internal successors, (15855), 5939 states have internal predecessors, (15855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:56,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5940 states to 5940 states and 15855 transitions. [2021-06-05 00:38:56,758 INFO L78 Accepts]: Start accepts. Automaton has 5940 states and 15855 transitions. Word has length 114 [2021-06-05 00:38:56,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:56,759 INFO L482 AbstractCegarLoop]: Abstraction has 5940 states and 15855 transitions. [2021-06-05 00:38:56,759 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:56,759 INFO L276 IsEmpty]: Start isEmpty. Operand 5940 states and 15855 transitions. [2021-06-05 00:38:56,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:56,763 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:56,763 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:56,763 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-06-05 00:38:56,763 INFO L430 AbstractCegarLoop]: === Iteration 147 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:56,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:56,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1215678226, now seen corresponding path program 141 times [2021-06-05 00:38:56,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:56,764 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103708184] [2021-06-05 00:38:56,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:57,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:57,058 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:57,058 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103708184] [2021-06-05 00:38:57,058 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103708184] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:57,058 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:57,058 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:57,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970689130] [2021-06-05 00:38:57,058 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:57,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:57,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:57,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:57,059 INFO L87 Difference]: Start difference. First operand 5940 states and 15855 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:57,755 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:38:57,908 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:38:58,065 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:38:58,246 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:38:58,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:58,374 INFO L93 Difference]: Finished difference Result 14010 states and 36459 transitions. [2021-06-05 00:38:58,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:38:58,374 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:38:58,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:58,386 INFO L225 Difference]: With dead ends: 14010 [2021-06-05 00:38:58,387 INFO L226 Difference]: Without dead ends: 14010 [2021-06-05 00:38:58,387 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1217.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:38:58,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14010 states. [2021-06-05 00:38:58,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14010 to 5956. [2021-06-05 00:38:58,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5956 states, 5954 states have (on average 2.670641585488747) internal successors, (15901), 5955 states have internal predecessors, (15901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:58,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5956 states to 5956 states and 15901 transitions. [2021-06-05 00:38:58,479 INFO L78 Accepts]: Start accepts. Automaton has 5956 states and 15901 transitions. Word has length 114 [2021-06-05 00:38:58,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:58,479 INFO L482 AbstractCegarLoop]: Abstraction has 5956 states and 15901 transitions. [2021-06-05 00:38:58,479 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:58,479 INFO L276 IsEmpty]: Start isEmpty. Operand 5956 states and 15901 transitions. [2021-06-05 00:38:58,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:38:58,483 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:58,483 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:58,484 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-06-05 00:38:58,484 INFO L430 AbstractCegarLoop]: === Iteration 148 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:58,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:58,484 INFO L82 PathProgramCache]: Analyzing trace with hash 919796396, now seen corresponding path program 142 times [2021-06-05 00:38:58,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:58,484 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039227416] [2021-06-05 00:38:58,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:58,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:58,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:58,809 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:58,809 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039227416] [2021-06-05 00:38:58,809 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039227416] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:58,809 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:58,809 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:38:58,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947114605] [2021-06-05 00:38:58,809 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:38:58,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:58,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:38:58,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:38:58,810 INFO L87 Difference]: Start difference. First operand 5956 states and 15901 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:59,527 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:38:59,688 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:38:59,862 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:39:00,043 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:39:00,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:00,177 INFO L93 Difference]: Finished difference Result 12290 states and 31747 transitions. [2021-06-05 00:39:00,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:00,177 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:00,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:00,187 INFO L225 Difference]: With dead ends: 12290 [2021-06-05 00:39:00,187 INFO L226 Difference]: Without dead ends: 12290 [2021-06-05 00:39:00,187 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1235.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:00,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12290 states. [2021-06-05 00:39:00,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12290 to 5908. [2021-06-05 00:39:00,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5908 states, 5906 states have (on average 2.6689806975956656) internal successors, (15763), 5907 states have internal predecessors, (15763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:00,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5908 states to 5908 states and 15763 transitions. [2021-06-05 00:39:00,271 INFO L78 Accepts]: Start accepts. Automaton has 5908 states and 15763 transitions. Word has length 114 [2021-06-05 00:39:00,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:00,271 INFO L482 AbstractCegarLoop]: Abstraction has 5908 states and 15763 transitions. [2021-06-05 00:39:00,271 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:00,271 INFO L276 IsEmpty]: Start isEmpty. Operand 5908 states and 15763 transitions. [2021-06-05 00:39:00,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:00,275 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:00,275 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:00,275 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-06-05 00:39:00,275 INFO L430 AbstractCegarLoop]: === Iteration 149 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:00,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:00,275 INFO L82 PathProgramCache]: Analyzing trace with hash -893931602, now seen corresponding path program 143 times [2021-06-05 00:39:00,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:00,276 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559841071] [2021-06-05 00:39:00,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:00,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:00,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:00,584 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:00,584 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559841071] [2021-06-05 00:39:00,584 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559841071] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:00,584 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:00,584 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:00,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756621562] [2021-06-05 00:39:00,585 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:00,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:00,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:00,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:00,585 INFO L87 Difference]: Start difference. First operand 5908 states and 15763 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:01,296 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:39:01,454 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:39:01,612 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:39:01,789 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:39:01,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:01,936 INFO L93 Difference]: Finished difference Result 15366 states and 39676 transitions. [2021-06-05 00:39:01,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:01,936 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:01,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:01,949 INFO L225 Difference]: With dead ends: 15366 [2021-06-05 00:39:01,949 INFO L226 Difference]: Without dead ends: 15366 [2021-06-05 00:39:01,949 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1231.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:01,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15366 states. [2021-06-05 00:39:02,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15366 to 5940. [2021-06-05 00:39:02,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5940 states, 5938 states have (on average 2.6700909397103403) internal successors, (15855), 5939 states have internal predecessors, (15855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:02,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5940 states to 5940 states and 15855 transitions. [2021-06-05 00:39:02,049 INFO L78 Accepts]: Start accepts. Automaton has 5940 states and 15855 transitions. Word has length 114 [2021-06-05 00:39:02,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:02,050 INFO L482 AbstractCegarLoop]: Abstraction has 5940 states and 15855 transitions. [2021-06-05 00:39:02,050 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:02,050 INFO L276 IsEmpty]: Start isEmpty. Operand 5940 states and 15855 transitions. [2021-06-05 00:39:02,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:02,054 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:02,054 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:02,054 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-06-05 00:39:02,054 INFO L430 AbstractCegarLoop]: === Iteration 150 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:02,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:02,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1241543020, now seen corresponding path program 144 times [2021-06-05 00:39:02,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:02,054 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891429159] [2021-06-05 00:39:02,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:02,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:02,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:02,343 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:02,343 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891429159] [2021-06-05 00:39:02,343 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891429159] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:02,343 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:02,343 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:02,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307872719] [2021-06-05 00:39:02,343 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:02,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:02,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:02,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:02,343 INFO L87 Difference]: Start difference. First operand 5940 states and 15855 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:03,073 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:39:03,219 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:39:03,394 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:39:03,574 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:39:03,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:03,728 INFO L93 Difference]: Finished difference Result 16212 states and 41536 transitions. [2021-06-05 00:39:03,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:03,728 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:03,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:03,744 INFO L225 Difference]: With dead ends: 16212 [2021-06-05 00:39:03,744 INFO L226 Difference]: Without dead ends: 16212 [2021-06-05 00:39:03,744 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1231.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:03,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16212 states. [2021-06-05 00:39:03,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16212 to 5924. [2021-06-05 00:39:03,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5924 states, 5922 states have (on average 2.6695373184734885) internal successors, (15809), 5923 states have internal predecessors, (15809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:03,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5924 states to 5924 states and 15809 transitions. [2021-06-05 00:39:03,854 INFO L78 Accepts]: Start accepts. Automaton has 5924 states and 15809 transitions. Word has length 114 [2021-06-05 00:39:03,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:03,854 INFO L482 AbstractCegarLoop]: Abstraction has 5924 states and 15809 transitions. [2021-06-05 00:39:03,854 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:03,854 INFO L276 IsEmpty]: Start isEmpty. Operand 5924 states and 15809 transitions. [2021-06-05 00:39:03,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:03,859 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:03,859 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:03,859 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-06-05 00:39:03,859 INFO L430 AbstractCegarLoop]: === Iteration 151 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:03,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:03,859 INFO L82 PathProgramCache]: Analyzing trace with hash 2039406480, now seen corresponding path program 145 times [2021-06-05 00:39:03,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:03,860 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733559114] [2021-06-05 00:39:03,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:03,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:04,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:04,167 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:04,167 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733559114] [2021-06-05 00:39:04,167 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733559114] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:04,167 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:04,167 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:04,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304369934] [2021-06-05 00:39:04,167 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:04,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:04,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:04,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:04,168 INFO L87 Difference]: Start difference. First operand 5924 states and 15809 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:04,864 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:39:05,008 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:39:05,176 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:39:05,357 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:39:05,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:05,497 INFO L93 Difference]: Finished difference Result 15512 states and 39907 transitions. [2021-06-05 00:39:05,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:05,498 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:05,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:05,515 INFO L225 Difference]: With dead ends: 15512 [2021-06-05 00:39:05,515 INFO L226 Difference]: Without dead ends: 15512 [2021-06-05 00:39:05,515 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1242.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:05,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15512 states. [2021-06-05 00:39:05,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15512 to 5940. [2021-06-05 00:39:05,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5940 states, 5938 states have (on average 2.6700909397103403) internal successors, (15855), 5939 states have internal predecessors, (15855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:05,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5940 states to 5940 states and 15855 transitions. [2021-06-05 00:39:05,623 INFO L78 Accepts]: Start accepts. Automaton has 5940 states and 15855 transitions. Word has length 114 [2021-06-05 00:39:05,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:05,623 INFO L482 AbstractCegarLoop]: Abstraction has 5940 states and 15855 transitions. [2021-06-05 00:39:05,623 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:05,623 INFO L276 IsEmpty]: Start isEmpty. Operand 5940 states and 15855 transitions. [2021-06-05 00:39:05,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:05,627 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:05,628 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:05,628 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-06-05 00:39:05,628 INFO L430 AbstractCegarLoop]: === Iteration 152 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:05,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:05,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1790859500, now seen corresponding path program 146 times [2021-06-05 00:39:05,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:05,628 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896945571] [2021-06-05 00:39:05,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:05,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:05,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:05,905 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:05,905 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896945571] [2021-06-05 00:39:05,906 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896945571] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:05,906 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:05,906 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:05,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237191288] [2021-06-05 00:39:05,906 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:05,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:05,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:05,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:05,906 INFO L87 Difference]: Start difference. First operand 5940 states and 15855 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:06,608 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:39:06,753 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:39:06,928 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:39:07,107 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:39:07,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:07,216 INFO L93 Difference]: Finished difference Result 12470 states and 32245 transitions. [2021-06-05 00:39:07,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:07,216 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:07,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:07,226 INFO L225 Difference]: With dead ends: 12470 [2021-06-05 00:39:07,226 INFO L226 Difference]: Without dead ends: 12470 [2021-06-05 00:39:07,227 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1220.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:07,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12470 states. [2021-06-05 00:39:07,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12470 to 5876. [2021-06-05 00:39:07,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5876 states, 5874 states have (on average 2.6678583588695948) internal successors, (15671), 5875 states have internal predecessors, (15671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:07,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5876 states to 5876 states and 15671 transitions. [2021-06-05 00:39:07,316 INFO L78 Accepts]: Start accepts. Automaton has 5876 states and 15671 transitions. Word has length 114 [2021-06-05 00:39:07,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:07,316 INFO L482 AbstractCegarLoop]: Abstraction has 5876 states and 15671 transitions. [2021-06-05 00:39:07,316 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:07,317 INFO L276 IsEmpty]: Start isEmpty. Operand 5876 states and 15671 transitions. [2021-06-05 00:39:07,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:07,321 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:07,321 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:07,321 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-06-05 00:39:07,321 INFO L430 AbstractCegarLoop]: === Iteration 153 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:07,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:07,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1029133776, now seen corresponding path program 147 times [2021-06-05 00:39:07,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:07,321 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338205955] [2021-06-05 00:39:07,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:07,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:07,603 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:07,603 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338205955] [2021-06-05 00:39:07,603 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338205955] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:07,603 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:07,603 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:07,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842548438] [2021-06-05 00:39:07,603 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:07,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:07,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:07,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:07,603 INFO L87 Difference]: Start difference. First operand 5876 states and 15671 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:08,308 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:39:08,451 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:39:08,610 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:39:08,788 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:39:08,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:08,923 INFO L93 Difference]: Finished difference Result 15894 states and 41146 transitions. [2021-06-05 00:39:08,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:08,924 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:08,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:08,938 INFO L225 Difference]: With dead ends: 15894 [2021-06-05 00:39:08,938 INFO L226 Difference]: Without dead ends: 15894 [2021-06-05 00:39:08,938 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1204.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:08,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15894 states. [2021-06-05 00:39:09,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15894 to 5940. [2021-06-05 00:39:09,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5940 states, 5938 states have (on average 2.6700909397103403) internal successors, (15855), 5939 states have internal predecessors, (15855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:09,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5940 states to 5940 states and 15855 transitions. [2021-06-05 00:39:09,046 INFO L78 Accepts]: Start accepts. Automaton has 5940 states and 15855 transitions. Word has length 114 [2021-06-05 00:39:09,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:09,046 INFO L482 AbstractCegarLoop]: Abstraction has 5940 states and 15855 transitions. [2021-06-05 00:39:09,046 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:09,046 INFO L276 IsEmpty]: Start isEmpty. Operand 5940 states and 15855 transitions. [2021-06-05 00:39:09,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:09,050 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:09,050 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:09,050 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-06-05 00:39:09,050 INFO L430 AbstractCegarLoop]: === Iteration 154 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:09,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:09,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1106340846, now seen corresponding path program 148 times [2021-06-05 00:39:09,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:09,051 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803064213] [2021-06-05 00:39:09,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:09,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:09,334 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:09,334 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803064213] [2021-06-05 00:39:09,334 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803064213] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:09,334 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:09,334 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:09,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095446482] [2021-06-05 00:39:09,334 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:09,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:09,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:09,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:09,335 INFO L87 Difference]: Start difference. First operand 5940 states and 15855 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:10,082 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:39:10,227 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:39:10,403 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:39:10,582 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:39:10,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:10,734 INFO L93 Difference]: Finished difference Result 16740 states and 43006 transitions. [2021-06-05 00:39:10,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:10,734 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:10,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:10,748 INFO L225 Difference]: With dead ends: 16740 [2021-06-05 00:39:10,748 INFO L226 Difference]: Without dead ends: 16740 [2021-06-05 00:39:10,749 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1240.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:10,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16740 states. [2021-06-05 00:39:10,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16740 to 5924. [2021-06-05 00:39:10,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5924 states, 5922 states have (on average 2.6695373184734885) internal successors, (15809), 5923 states have internal predecessors, (15809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:10,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5924 states to 5924 states and 15809 transitions. [2021-06-05 00:39:10,853 INFO L78 Accepts]: Start accepts. Automaton has 5924 states and 15809 transitions. Word has length 114 [2021-06-05 00:39:10,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:10,854 INFO L482 AbstractCegarLoop]: Abstraction has 5924 states and 15809 transitions. [2021-06-05 00:39:10,854 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:10,854 INFO L276 IsEmpty]: Start isEmpty. Operand 5924 states and 15809 transitions. [2021-06-05 00:39:10,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:10,858 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:10,858 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:10,858 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-06-05 00:39:10,858 INFO L430 AbstractCegarLoop]: === Iteration 155 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:10,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:10,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1904204306, now seen corresponding path program 149 times [2021-06-05 00:39:10,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:10,858 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525468666] [2021-06-05 00:39:10,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:11,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:11,141 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:11,141 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525468666] [2021-06-05 00:39:11,141 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525468666] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:11,141 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:11,141 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:11,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920024414] [2021-06-05 00:39:11,142 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:11,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:11,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:11,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:11,142 INFO L87 Difference]: Start difference. First operand 5924 states and 15809 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:11,873 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:39:12,020 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:39:12,192 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:39:12,375 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:39:12,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:12,551 INFO L93 Difference]: Finished difference Result 19946 states and 51120 transitions. [2021-06-05 00:39:12,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:12,551 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:12,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:12,568 INFO L225 Difference]: With dead ends: 19946 [2021-06-05 00:39:12,568 INFO L226 Difference]: Without dead ends: 19946 [2021-06-05 00:39:12,568 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1222.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:12,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19946 states. [2021-06-05 00:39:12,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19946 to 5940. [2021-06-05 00:39:12,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5940 states, 5938 states have (on average 2.6700909397103403) internal successors, (15855), 5939 states have internal predecessors, (15855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:12,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5940 states to 5940 states and 15855 transitions. [2021-06-05 00:39:12,685 INFO L78 Accepts]: Start accepts. Automaton has 5940 states and 15855 transitions. Word has length 114 [2021-06-05 00:39:12,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:12,685 INFO L482 AbstractCegarLoop]: Abstraction has 5940 states and 15855 transitions. [2021-06-05 00:39:12,685 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:12,685 INFO L276 IsEmpty]: Start isEmpty. Operand 5940 states and 15855 transitions. [2021-06-05 00:39:12,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:12,689 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:12,689 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:12,689 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-06-05 00:39:12,689 INFO L430 AbstractCegarLoop]: === Iteration 156 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:12,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:12,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1655657326, now seen corresponding path program 150 times [2021-06-05 00:39:12,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:12,689 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367989321] [2021-06-05 00:39:12,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:12,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:12,963 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:12,963 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367989321] [2021-06-05 00:39:12,964 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367989321] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:12,964 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:12,964 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:12,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859356893] [2021-06-05 00:39:12,964 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:12,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:12,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:12,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:12,964 INFO L87 Difference]: Start difference. First operand 5940 states and 15855 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:13,679 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:39:13,823 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:39:13,983 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:39:14,163 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:39:14,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:14,299 INFO L93 Difference]: Finished difference Result 16904 states and 43458 transitions. [2021-06-05 00:39:14,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:14,299 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:14,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:14,314 INFO L225 Difference]: With dead ends: 16904 [2021-06-05 00:39:14,314 INFO L226 Difference]: Without dead ends: 16904 [2021-06-05 00:39:14,314 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1191.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:14,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16904 states. [2021-06-05 00:39:14,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16904 to 5908. [2021-06-05 00:39:14,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5908 states, 5906 states have (on average 2.6689806975956656) internal successors, (15763), 5907 states have internal predecessors, (15763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:14,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5908 states to 5908 states and 15763 transitions. [2021-06-05 00:39:14,418 INFO L78 Accepts]: Start accepts. Automaton has 5908 states and 15763 transitions. Word has length 114 [2021-06-05 00:39:14,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:14,418 INFO L482 AbstractCegarLoop]: Abstraction has 5908 states and 15763 transitions. [2021-06-05 00:39:14,418 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:14,418 INFO L276 IsEmpty]: Start isEmpty. Operand 5908 states and 15763 transitions. [2021-06-05 00:39:14,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:14,423 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:14,423 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:14,423 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-06-05 00:39:14,423 INFO L430 AbstractCegarLoop]: === Iteration 157 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:14,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:14,424 INFO L82 PathProgramCache]: Analyzing trace with hash 635387020, now seen corresponding path program 151 times [2021-06-05 00:39:14,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:14,424 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793444292] [2021-06-05 00:39:14,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:14,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:14,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:14,714 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:14,714 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793444292] [2021-06-05 00:39:14,714 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793444292] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:14,714 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:14,714 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:14,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071592161] [2021-06-05 00:39:14,714 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:14,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:14,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:14,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:14,715 INFO L87 Difference]: Start difference. First operand 5908 states and 15763 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:15,416 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:39:15,570 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:39:15,742 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:39:15,923 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:39:16,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:16,053 INFO L93 Difference]: Finished difference Result 16024 states and 41331 transitions. [2021-06-05 00:39:16,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:16,053 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:16,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:16,067 INFO L225 Difference]: With dead ends: 16024 [2021-06-05 00:39:16,067 INFO L226 Difference]: Without dead ends: 16024 [2021-06-05 00:39:16,067 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1241.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:16,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16024 states. [2021-06-05 00:39:16,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16024 to 5956. [2021-06-05 00:39:16,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5956 states, 5954 states have (on average 2.670641585488747) internal successors, (15901), 5955 states have internal predecessors, (15901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:16,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5956 states to 5956 states and 15901 transitions. [2021-06-05 00:39:16,170 INFO L78 Accepts]: Start accepts. Automaton has 5956 states and 15901 transitions. Word has length 114 [2021-06-05 00:39:16,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:16,170 INFO L482 AbstractCegarLoop]: Abstraction has 5956 states and 15901 transitions. [2021-06-05 00:39:16,171 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:16,171 INFO L276 IsEmpty]: Start isEmpty. Operand 5956 states and 15901 transitions. [2021-06-05 00:39:16,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:16,175 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:16,175 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:16,175 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-06-05 00:39:16,176 INFO L430 AbstractCegarLoop]: === Iteration 158 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:16,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:16,176 INFO L82 PathProgramCache]: Analyzing trace with hash 386840040, now seen corresponding path program 152 times [2021-06-05 00:39:16,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:16,176 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744343119] [2021-06-05 00:39:16,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:16,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:16,480 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:16,480 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744343119] [2021-06-05 00:39:16,480 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744343119] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:16,480 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:16,480 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:16,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216647346] [2021-06-05 00:39:16,480 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:16,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:16,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:16,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:16,481 INFO L87 Difference]: Start difference. First operand 5956 states and 15901 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:17,180 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:39:17,337 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:39:17,498 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:39:17,679 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:39:17,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:17,825 INFO L93 Difference]: Finished difference Result 15860 states and 40929 transitions. [2021-06-05 00:39:17,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:17,825 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:17,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:17,837 INFO L225 Difference]: With dead ends: 15860 [2021-06-05 00:39:17,837 INFO L226 Difference]: Without dead ends: 15860 [2021-06-05 00:39:17,838 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1225.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:17,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15860 states. [2021-06-05 00:39:17,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15860 to 5940. [2021-06-05 00:39:17,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5940 states, 5938 states have (on average 2.6700909397103403) internal successors, (15855), 5939 states have internal predecessors, (15855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:17,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5940 states to 5940 states and 15855 transitions. [2021-06-05 00:39:17,929 INFO L78 Accepts]: Start accepts. Automaton has 5940 states and 15855 transitions. Word has length 114 [2021-06-05 00:39:17,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:17,929 INFO L482 AbstractCegarLoop]: Abstraction has 5940 states and 15855 transitions. [2021-06-05 00:39:17,929 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:17,930 INFO L276 IsEmpty]: Start isEmpty. Operand 5940 states and 15855 transitions. [2021-06-05 00:39:17,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:17,934 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:17,934 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:17,934 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-06-05 00:39:17,934 INFO L430 AbstractCegarLoop]: === Iteration 159 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:17,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:17,934 INFO L82 PathProgramCache]: Analyzing trace with hash -769977264, now seen corresponding path program 153 times [2021-06-05 00:39:17,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:17,934 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262384834] [2021-06-05 00:39:17,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:18,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:18,224 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:18,224 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262384834] [2021-06-05 00:39:18,224 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262384834] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:18,224 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:18,224 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:18,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398784921] [2021-06-05 00:39:18,225 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:18,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:18,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:18,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:18,225 INFO L87 Difference]: Start difference. First operand 5940 states and 15855 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:18,918 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:39:19,054 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:39:19,223 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:39:19,404 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:39:19,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:19,519 INFO L93 Difference]: Finished difference Result 12918 states and 33501 transitions. [2021-06-05 00:39:19,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:19,520 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:19,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:19,532 INFO L225 Difference]: With dead ends: 12918 [2021-06-05 00:39:19,532 INFO L226 Difference]: Without dead ends: 12918 [2021-06-05 00:39:19,532 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1204.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:19,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12918 states. [2021-06-05 00:39:19,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12918 to 5812. [2021-06-05 00:39:19,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5812 states, 5810 states have (on average 2.665576592082616) internal successors, (15487), 5811 states have internal predecessors, (15487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:19,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5812 states to 5812 states and 15487 transitions. [2021-06-05 00:39:19,619 INFO L78 Accepts]: Start accepts. Automaton has 5812 states and 15487 transitions. Word has length 114 [2021-06-05 00:39:19,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:19,619 INFO L482 AbstractCegarLoop]: Abstraction has 5812 states and 15487 transitions. [2021-06-05 00:39:19,619 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:19,619 INFO L276 IsEmpty]: Start isEmpty. Operand 5812 states and 15487 transitions. [2021-06-05 00:39:19,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:19,623 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:19,623 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:19,623 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-06-05 00:39:19,623 INFO L430 AbstractCegarLoop]: === Iteration 160 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:19,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:19,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1442527378, now seen corresponding path program 154 times [2021-06-05 00:39:19,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:19,624 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366578828] [2021-06-05 00:39:19,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:19,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:19,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:19,900 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:19,900 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366578828] [2021-06-05 00:39:19,900 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366578828] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:19,900 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:19,900 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:19,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136399698] [2021-06-05 00:39:19,901 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:19,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:19,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:19,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:19,901 INFO L87 Difference]: Start difference. First operand 5812 states and 15487 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:20,624 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:39:20,767 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:39:20,924 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:39:21,100 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:39:21,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:21,221 INFO L93 Difference]: Finished difference Result 10882 states and 28326 transitions. [2021-06-05 00:39:21,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:21,222 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:21,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:21,230 INFO L225 Difference]: With dead ends: 10882 [2021-06-05 00:39:21,230 INFO L226 Difference]: Without dead ends: 10882 [2021-06-05 00:39:21,230 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1207.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:21,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10882 states. [2021-06-05 00:39:21,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10882 to 5890. [2021-06-05 00:39:21,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5890 states, 5888 states have (on average 2.6684782608695654) internal successors, (15712), 5889 states have internal predecessors, (15712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:21,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5890 states to 5890 states and 15712 transitions. [2021-06-05 00:39:21,312 INFO L78 Accepts]: Start accepts. Automaton has 5890 states and 15712 transitions. Word has length 114 [2021-06-05 00:39:21,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:21,312 INFO L482 AbstractCegarLoop]: Abstraction has 5890 states and 15712 transitions. [2021-06-05 00:39:21,312 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:21,312 INFO L276 IsEmpty]: Start isEmpty. Operand 5890 states and 15712 transitions. [2021-06-05 00:39:21,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:21,316 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:21,316 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:21,316 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-06-05 00:39:21,316 INFO L430 AbstractCegarLoop]: === Iteration 161 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:21,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:21,316 INFO L82 PathProgramCache]: Analyzing trace with hash -716965296, now seen corresponding path program 155 times [2021-06-05 00:39:21,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:21,316 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424166246] [2021-06-05 00:39:21,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:21,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:21,598 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:21,598 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424166246] [2021-06-05 00:39:21,598 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424166246] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:21,598 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:21,598 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:21,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768760052] [2021-06-05 00:39:21,598 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:21,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:21,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:21,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:21,598 INFO L87 Difference]: Start difference. First operand 5890 states and 15712 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:22,299 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:39:22,442 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:39:22,614 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:39:22,788 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:39:22,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:22,903 INFO L93 Difference]: Finished difference Result 11728 states and 30186 transitions. [2021-06-05 00:39:22,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:22,904 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:22,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:22,913 INFO L225 Difference]: With dead ends: 11728 [2021-06-05 00:39:22,913 INFO L226 Difference]: Without dead ends: 11728 [2021-06-05 00:39:22,913 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1224.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:22,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11728 states. [2021-06-05 00:39:22,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11728 to 5874. [2021-06-05 00:39:22,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5874 states, 5872 states have (on average 2.66791553133515) internal successors, (15666), 5873 states have internal predecessors, (15666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:22,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5874 states to 5874 states and 15666 transitions. [2021-06-05 00:39:22,997 INFO L78 Accepts]: Start accepts. Automaton has 5874 states and 15666 transitions. Word has length 114 [2021-06-05 00:39:22,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:22,997 INFO L482 AbstractCegarLoop]: Abstraction has 5874 states and 15666 transitions. [2021-06-05 00:39:22,997 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:22,997 INFO L276 IsEmpty]: Start isEmpty. Operand 5874 states and 15666 transitions. [2021-06-05 00:39:23,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:23,001 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:23,001 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:23,002 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-06-05 00:39:23,002 INFO L430 AbstractCegarLoop]: === Iteration 162 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:23,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:23,002 INFO L82 PathProgramCache]: Analyzing trace with hash 80898164, now seen corresponding path program 156 times [2021-06-05 00:39:23,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:23,002 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581050019] [2021-06-05 00:39:23,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:23,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:23,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:23,309 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:23,309 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581050019] [2021-06-05 00:39:23,309 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581050019] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:23,310 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:23,310 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:23,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664123651] [2021-06-05 00:39:23,310 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:23,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:23,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:23,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:23,310 INFO L87 Difference]: Start difference. First operand 5874 states and 15666 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:24,027 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:39:24,174 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:39:24,343 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:39:24,522 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:39:24,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:24,667 INFO L93 Difference]: Finished difference Result 14934 states and 38300 transitions. [2021-06-05 00:39:24,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:24,667 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:24,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:24,680 INFO L225 Difference]: With dead ends: 14934 [2021-06-05 00:39:24,680 INFO L226 Difference]: Without dead ends: 14934 [2021-06-05 00:39:24,681 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1218.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:24,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14934 states. [2021-06-05 00:39:24,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14934 to 5890. [2021-06-05 00:39:24,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5890 states, 5888 states have (on average 2.6684782608695654) internal successors, (15712), 5889 states have internal predecessors, (15712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:24,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5890 states to 5890 states and 15712 transitions. [2021-06-05 00:39:24,782 INFO L78 Accepts]: Start accepts. Automaton has 5890 states and 15712 transitions. Word has length 114 [2021-06-05 00:39:24,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:24,782 INFO L482 AbstractCegarLoop]: Abstraction has 5890 states and 15712 transitions. [2021-06-05 00:39:24,782 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:24,782 INFO L276 IsEmpty]: Start isEmpty. Operand 5890 states and 15712 transitions. [2021-06-05 00:39:24,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:24,787 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:24,787 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:24,787 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-06-05 00:39:24,787 INFO L430 AbstractCegarLoop]: === Iteration 163 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:24,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:24,787 INFO L82 PathProgramCache]: Analyzing trace with hash -167648816, now seen corresponding path program 157 times [2021-06-05 00:39:24,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:24,787 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899647284] [2021-06-05 00:39:24,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:25,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:25,065 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:25,065 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899647284] [2021-06-05 00:39:25,065 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899647284] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:25,065 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:25,065 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:25,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124269287] [2021-06-05 00:39:25,065 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:25,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:25,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:25,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:25,065 INFO L87 Difference]: Start difference. First operand 5890 states and 15712 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:25,763 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:39:25,921 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:39:26,077 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:39:26,254 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:39:26,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:26,359 INFO L93 Difference]: Finished difference Result 11892 states and 30638 transitions. [2021-06-05 00:39:26,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:26,359 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:26,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:26,368 INFO L225 Difference]: With dead ends: 11892 [2021-06-05 00:39:26,369 INFO L226 Difference]: Without dead ends: 11892 [2021-06-05 00:39:26,369 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1217.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:26,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11892 states. [2021-06-05 00:39:26,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11892 to 5858. [2021-06-05 00:39:26,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5858 states, 5856 states have (on average 2.6673497267759565) internal successors, (15620), 5857 states have internal predecessors, (15620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:26,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5858 states to 5858 states and 15620 transitions. [2021-06-05 00:39:26,450 INFO L78 Accepts]: Start accepts. Automaton has 5858 states and 15620 transitions. Word has length 114 [2021-06-05 00:39:26,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:26,450 INFO L482 AbstractCegarLoop]: Abstraction has 5858 states and 15620 transitions. [2021-06-05 00:39:26,450 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:26,450 INFO L276 IsEmpty]: Start isEmpty. Operand 5858 states and 15620 transitions. [2021-06-05 00:39:26,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:26,454 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:26,454 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:26,454 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-06-05 00:39:26,454 INFO L430 AbstractCegarLoop]: === Iteration 164 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:26,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:26,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1187919122, now seen corresponding path program 158 times [2021-06-05 00:39:26,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:26,454 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580191615] [2021-06-05 00:39:26,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:26,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:26,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:26,752 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:26,752 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580191615] [2021-06-05 00:39:26,752 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580191615] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:26,752 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:26,752 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:26,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692258861] [2021-06-05 00:39:26,752 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:26,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:26,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:26,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:26,753 INFO L87 Difference]: Start difference. First operand 5858 states and 15620 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:27,441 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:39:27,597 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:39:27,769 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:39:27,949 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:39:28,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:28,081 INFO L93 Difference]: Finished difference Result 15414 states and 39632 transitions. [2021-06-05 00:39:28,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:28,082 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:28,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:28,096 INFO L225 Difference]: With dead ends: 15414 [2021-06-05 00:39:28,096 INFO L226 Difference]: Without dead ends: 15414 [2021-06-05 00:39:28,096 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1236.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:28,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15414 states. [2021-06-05 00:39:28,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15414 to 5906. [2021-06-05 00:39:28,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5906 states, 5904 states have (on average 2.669037940379404) internal successors, (15758), 5905 states have internal predecessors, (15758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:28,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5906 states to 5906 states and 15758 transitions. [2021-06-05 00:39:28,195 INFO L78 Accepts]: Start accepts. Automaton has 5906 states and 15758 transitions. Word has length 114 [2021-06-05 00:39:28,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:28,195 INFO L482 AbstractCegarLoop]: Abstraction has 5906 states and 15758 transitions. [2021-06-05 00:39:28,195 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:28,195 INFO L276 IsEmpty]: Start isEmpty. Operand 5906 states and 15758 transitions. [2021-06-05 00:39:28,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:28,199 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:28,199 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:28,199 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-06-05 00:39:28,199 INFO L430 AbstractCegarLoop]: === Iteration 165 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:28,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:28,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1436466102, now seen corresponding path program 159 times [2021-06-05 00:39:28,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:28,200 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575281993] [2021-06-05 00:39:28,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:28,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:28,515 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:28,515 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575281993] [2021-06-05 00:39:28,515 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575281993] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:28,515 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:28,515 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:28,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277205756] [2021-06-05 00:39:28,515 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:28,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:28,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:28,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:28,516 INFO L87 Difference]: Start difference. First operand 5906 states and 15758 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:29,221 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:39:29,396 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:39:29,559 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:39:29,739 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:39:29,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:29,874 INFO L93 Difference]: Finished difference Result 15250 states and 39230 transitions. [2021-06-05 00:39:29,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:29,874 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:29,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:29,887 INFO L225 Difference]: With dead ends: 15250 [2021-06-05 00:39:29,887 INFO L226 Difference]: Without dead ends: 15250 [2021-06-05 00:39:29,888 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1259.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:29,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15250 states. [2021-06-05 00:39:29,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15250 to 5890. [2021-06-05 00:39:29,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5890 states, 5888 states have (on average 2.6684782608695654) internal successors, (15712), 5889 states have internal predecessors, (15712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:29,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5890 states to 5890 states and 15712 transitions. [2021-06-05 00:39:29,985 INFO L78 Accepts]: Start accepts. Automaton has 5890 states and 15712 transitions. Word has length 114 [2021-06-05 00:39:29,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:29,986 INFO L482 AbstractCegarLoop]: Abstraction has 5890 states and 15712 transitions. [2021-06-05 00:39:29,986 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:29,986 INFO L276 IsEmpty]: Start isEmpty. Operand 5890 states and 15712 transitions. [2021-06-05 00:39:29,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:29,990 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:29,990 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:29,990 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-06-05 00:39:29,990 INFO L430 AbstractCegarLoop]: === Iteration 166 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:29,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:29,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1701683890, now seen corresponding path program 160 times [2021-06-05 00:39:29,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:29,990 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517842449] [2021-06-05 00:39:29,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:30,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:30,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:30,282 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:30,282 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517842449] [2021-06-05 00:39:30,282 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517842449] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:30,282 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:30,282 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:30,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388828838] [2021-06-05 00:39:30,283 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:30,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:30,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:30,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:30,283 INFO L87 Difference]: Start difference. First operand 5890 states and 15712 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:30,985 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:39:31,122 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:39:31,298 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:39:31,493 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:39:31,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:31,614 INFO L93 Difference]: Finished difference Result 12308 states and 31802 transitions. [2021-06-05 00:39:31,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:31,615 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:31,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:31,624 INFO L225 Difference]: With dead ends: 12308 [2021-06-05 00:39:31,624 INFO L226 Difference]: Without dead ends: 12308 [2021-06-05 00:39:31,624 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1206.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:31,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12308 states. [2021-06-05 00:39:31,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12308 to 5826. [2021-06-05 00:39:31,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5826 states, 5824 states have (on average 2.666208791208791) internal successors, (15528), 5825 states have internal predecessors, (15528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:31,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5826 states to 5826 states and 15528 transitions. [2021-06-05 00:39:31,708 INFO L78 Accepts]: Start accepts. Automaton has 5826 states and 15528 transitions. Word has length 114 [2021-06-05 00:39:31,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:31,708 INFO L482 AbstractCegarLoop]: Abstraction has 5826 states and 15528 transitions. [2021-06-05 00:39:31,708 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:31,708 INFO L276 IsEmpty]: Start isEmpty. Operand 5826 states and 15528 transitions. [2021-06-05 00:39:31,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:31,712 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:31,712 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:31,712 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-06-05 00:39:31,712 INFO L430 AbstractCegarLoop]: === Iteration 167 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:31,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:31,712 INFO L82 PathProgramCache]: Analyzing trace with hash -783559540, now seen corresponding path program 161 times [2021-06-05 00:39:31,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:31,712 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164434245] [2021-06-05 00:39:31,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:31,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:32,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:32,018 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:32,018 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164434245] [2021-06-05 00:39:32,018 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164434245] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:32,018 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:32,018 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:32,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991951772] [2021-06-05 00:39:32,018 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:32,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:32,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:32,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:32,019 INFO L87 Difference]: Start difference. First operand 5826 states and 15528 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:32,714 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:39:32,870 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:39:33,041 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:39:33,220 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:39:33,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:33,337 INFO L93 Difference]: Finished difference Result 10980 states and 28419 transitions. [2021-06-05 00:39:33,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:33,337 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:33,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:33,348 INFO L225 Difference]: With dead ends: 10980 [2021-06-05 00:39:33,348 INFO L226 Difference]: Without dead ends: 10980 [2021-06-05 00:39:33,348 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1251.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:33,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10980 states. [2021-06-05 00:39:33,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10980 to 5888. [2021-06-05 00:39:33,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5888 states, 5886 states have (on average 2.6685355079850495) internal successors, (15707), 5887 states have internal predecessors, (15707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:33,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5888 states to 5888 states and 15707 transitions. [2021-06-05 00:39:33,434 INFO L78 Accepts]: Start accepts. Automaton has 5888 states and 15707 transitions. Word has length 114 [2021-06-05 00:39:33,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:33,434 INFO L482 AbstractCegarLoop]: Abstraction has 5888 states and 15707 transitions. [2021-06-05 00:39:33,434 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:33,434 INFO L276 IsEmpty]: Start isEmpty. Operand 5888 states and 15707 transitions. [2021-06-05 00:39:33,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:33,438 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:33,438 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:33,438 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-06-05 00:39:33,438 INFO L430 AbstractCegarLoop]: === Iteration 168 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:33,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:33,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1032106520, now seen corresponding path program 162 times [2021-06-05 00:39:33,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:33,439 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663181145] [2021-06-05 00:39:33,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:33,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:33,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:33,741 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:33,741 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663181145] [2021-06-05 00:39:33,741 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663181145] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:33,741 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:33,741 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:33,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665243887] [2021-06-05 00:39:33,741 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:33,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:33,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:33,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:33,742 INFO L87 Difference]: Start difference. First operand 5888 states and 15707 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:34,437 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:39:34,591 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:39:34,750 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:39:34,928 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:39:35,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:35,035 INFO L93 Difference]: Finished difference Result 10816 states and 28017 transitions. [2021-06-05 00:39:35,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:35,035 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:35,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:35,044 INFO L225 Difference]: With dead ends: 10816 [2021-06-05 00:39:35,044 INFO L226 Difference]: Without dead ends: 10816 [2021-06-05 00:39:35,044 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1233.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:35,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10816 states. [2021-06-05 00:39:35,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10816 to 5872. [2021-06-05 00:39:35,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5872 states, 5870 states have (on average 2.6679727427597957) internal successors, (15661), 5871 states have internal predecessors, (15661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:35,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5872 states to 5872 states and 15661 transitions. [2021-06-05 00:39:35,119 INFO L78 Accepts]: Start accepts. Automaton has 5872 states and 15661 transitions. Word has length 114 [2021-06-05 00:39:35,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:35,119 INFO L482 AbstractCegarLoop]: Abstraction has 5872 states and 15661 transitions. [2021-06-05 00:39:35,119 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:35,119 INFO L276 IsEmpty]: Start isEmpty. Operand 5872 states and 15661 transitions. [2021-06-05 00:39:35,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:35,123 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:35,123 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:35,123 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-06-05 00:39:35,123 INFO L430 AbstractCegarLoop]: === Iteration 169 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:35,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:35,123 INFO L82 PathProgramCache]: Analyzing trace with hash 2106043472, now seen corresponding path program 163 times [2021-06-05 00:39:35,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:35,123 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59507763] [2021-06-05 00:39:35,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:35,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:35,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:35,428 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:35,428 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59507763] [2021-06-05 00:39:35,428 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59507763] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:35,428 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:35,428 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:35,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72146008] [2021-06-05 00:39:35,428 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:35,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:35,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:35,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:35,429 INFO L87 Difference]: Start difference. First operand 5872 states and 15661 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:36,155 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:39:36,290 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:39:36,465 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:39:36,664 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:39:36,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:36,782 INFO L93 Difference]: Finished difference Result 11104 states and 28845 transitions. [2021-06-05 00:39:36,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:36,782 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:36,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:36,791 INFO L225 Difference]: With dead ends: 11104 [2021-06-05 00:39:36,791 INFO L226 Difference]: Without dead ends: 11104 [2021-06-05 00:39:36,792 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1253.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:36,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11104 states. [2021-06-05 00:39:36,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11104 to 5840. [2021-06-05 00:39:36,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5840 states, 5838 states have (on average 2.6668379582048645) internal successors, (15569), 5839 states have internal predecessors, (15569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:36,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5840 states to 5840 states and 15569 transitions. [2021-06-05 00:39:36,885 INFO L78 Accepts]: Start accepts. Automaton has 5840 states and 15569 transitions. Word has length 114 [2021-06-05 00:39:36,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:36,885 INFO L482 AbstractCegarLoop]: Abstraction has 5840 states and 15569 transitions. [2021-06-05 00:39:36,886 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:36,886 INFO L276 IsEmpty]: Start isEmpty. Operand 5840 states and 15569 transitions. [2021-06-05 00:39:36,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:36,890 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:36,890 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:36,890 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-06-05 00:39:36,890 INFO L430 AbstractCegarLoop]: === Iteration 170 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:36,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:36,890 INFO L82 PathProgramCache]: Analyzing trace with hash -480740686, now seen corresponding path program 164 times [2021-06-05 00:39:36,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:36,890 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953546600] [2021-06-05 00:39:36,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:37,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:37,200 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:37,200 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953546600] [2021-06-05 00:39:37,200 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953546600] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:37,200 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:37,200 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:37,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493242451] [2021-06-05 00:39:37,200 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:37,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:37,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:37,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:37,201 INFO L87 Difference]: Start difference. First operand 5840 states and 15569 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:38,047 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:39:38,222 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:39:38,406 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:39:38,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:38,513 INFO L93 Difference]: Finished difference Result 7746 states and 20253 transitions. [2021-06-05 00:39:38,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:38,514 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:38,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:38,520 INFO L225 Difference]: With dead ends: 7746 [2021-06-05 00:39:38,520 INFO L226 Difference]: Without dead ends: 7746 [2021-06-05 00:39:38,520 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1228.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:38,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7746 states. [2021-06-05 00:39:38,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7746 to 5924. [2021-06-05 00:39:38,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5924 states, 5922 states have (on average 2.670550489699426) internal successors, (15815), 5923 states have internal predecessors, (15815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:38,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5924 states to 5924 states and 15815 transitions. [2021-06-05 00:39:38,585 INFO L78 Accepts]: Start accepts. Automaton has 5924 states and 15815 transitions. Word has length 114 [2021-06-05 00:39:38,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:38,586 INFO L482 AbstractCegarLoop]: Abstraction has 5924 states and 15815 transitions. [2021-06-05 00:39:38,586 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:38,586 INFO L276 IsEmpty]: Start isEmpty. Operand 5924 states and 15815 transitions. [2021-06-05 00:39:38,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:38,590 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:38,590 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:38,590 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-06-05 00:39:38,590 INFO L430 AbstractCegarLoop]: === Iteration 171 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:38,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:38,590 INFO L82 PathProgramCache]: Analyzing trace with hash -353757640, now seen corresponding path program 165 times [2021-06-05 00:39:38,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:38,590 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575067419] [2021-06-05 00:39:38,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:38,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:38,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:38,875 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:38,875 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575067419] [2021-06-05 00:39:38,875 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575067419] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:38,875 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:38,875 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 00:39:38,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578026558] [2021-06-05 00:39:38,875 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 00:39:38,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:38,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 00:39:38,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:39:38,876 INFO L87 Difference]: Start difference. First operand 5924 states and 15815 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:39,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:39,858 INFO L93 Difference]: Finished difference Result 7633 states and 19368 transitions. [2021-06-05 00:39:39,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 00:39:39,858 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:39,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:39,863 INFO L225 Difference]: With dead ends: 7633 [2021-06-05 00:39:39,863 INFO L226 Difference]: Without dead ends: 7633 [2021-06-05 00:39:39,863 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 875.8ms TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 00:39:39,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7633 states. [2021-06-05 00:39:39,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7633 to 5858. [2021-06-05 00:39:39,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5858 states, 5856 states have (on average 2.6741803278688523) internal successors, (15660), 5857 states have internal predecessors, (15660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:39,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5858 states to 5858 states and 15660 transitions. [2021-06-05 00:39:39,925 INFO L78 Accepts]: Start accepts. Automaton has 5858 states and 15660 transitions. Word has length 114 [2021-06-05 00:39:39,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:39,925 INFO L482 AbstractCegarLoop]: Abstraction has 5858 states and 15660 transitions. [2021-06-05 00:39:39,925 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:39,926 INFO L276 IsEmpty]: Start isEmpty. Operand 5858 states and 15660 transitions. [2021-06-05 00:39:39,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:39,930 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:39,930 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:39,930 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-06-05 00:39:39,930 INFO L430 AbstractCegarLoop]: === Iteration 172 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:39,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:39,930 INFO L82 PathProgramCache]: Analyzing trace with hash 798212522, now seen corresponding path program 166 times [2021-06-05 00:39:39,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:39,930 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880763706] [2021-06-05 00:39:39,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:40,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:40,234 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:40,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880763706] [2021-06-05 00:39:40,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880763706] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:40,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:40,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:40,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104645044] [2021-06-05 00:39:40,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:40,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:40,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:40,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:40,235 INFO L87 Difference]: Start difference. First operand 5858 states and 15660 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:40,960 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:39:41,100 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:39:41,277 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:39:41,463 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:39:41,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:41,619 INFO L93 Difference]: Finished difference Result 20547 states and 53868 transitions. [2021-06-05 00:39:41,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:41,620 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:41,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:41,637 INFO L225 Difference]: With dead ends: 20547 [2021-06-05 00:39:41,637 INFO L226 Difference]: Without dead ends: 20547 [2021-06-05 00:39:41,637 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1230.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:41,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20547 states. [2021-06-05 00:39:41,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20547 to 5970. [2021-06-05 00:39:41,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5970 states, 5968 states have (on average 2.6779490616621984) internal successors, (15982), 5969 states have internal predecessors, (15982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:41,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5970 states to 5970 states and 15982 transitions. [2021-06-05 00:39:41,759 INFO L78 Accepts]: Start accepts. Automaton has 5970 states and 15982 transitions. Word has length 114 [2021-06-05 00:39:41,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:41,759 INFO L482 AbstractCegarLoop]: Abstraction has 5970 states and 15982 transitions. [2021-06-05 00:39:41,759 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:41,759 INFO L276 IsEmpty]: Start isEmpty. Operand 5970 states and 15982 transitions. [2021-06-05 00:39:41,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:41,763 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:41,763 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:41,763 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-06-05 00:39:41,763 INFO L430 AbstractCegarLoop]: === Iteration 173 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:41,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:41,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1583518038, now seen corresponding path program 167 times [2021-06-05 00:39:41,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:41,764 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568911962] [2021-06-05 00:39:41,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:42,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:42,059 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:42,059 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568911962] [2021-06-05 00:39:42,059 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568911962] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:42,059 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:42,059 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:42,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464011754] [2021-06-05 00:39:42,059 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:42,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:42,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:42,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:42,060 INFO L87 Difference]: Start difference. First operand 5970 states and 15982 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:42,802 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:39:42,963 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:39:43,122 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:39:43,306 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:39:43,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:43,465 INFO L93 Difference]: Finished difference Result 23171 states and 60591 transitions. [2021-06-05 00:39:43,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:43,465 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:43,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:43,486 INFO L225 Difference]: With dead ends: 23171 [2021-06-05 00:39:43,486 INFO L226 Difference]: Without dead ends: 23171 [2021-06-05 00:39:43,486 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1224.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:43,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23171 states. [2021-06-05 00:39:43,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23171 to 5986. [2021-06-05 00:39:43,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5986 states, 5984 states have (on average 2.678475935828877) internal successors, (16028), 5985 states have internal predecessors, (16028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:43,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5986 states to 5986 states and 16028 transitions. [2021-06-05 00:39:43,622 INFO L78 Accepts]: Start accepts. Automaton has 5986 states and 16028 transitions. Word has length 114 [2021-06-05 00:39:43,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:43,622 INFO L482 AbstractCegarLoop]: Abstraction has 5986 states and 16028 transitions. [2021-06-05 00:39:43,622 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:43,622 INFO L276 IsEmpty]: Start isEmpty. Operand 5986 states and 16028 transitions. [2021-06-05 00:39:43,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:43,626 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:43,626 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:43,626 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-06-05 00:39:43,627 INFO L430 AbstractCegarLoop]: === Iteration 174 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:43,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:43,627 INFO L82 PathProgramCache]: Analyzing trace with hash 551956584, now seen corresponding path program 168 times [2021-06-05 00:39:43,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:43,627 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679144877] [2021-06-05 00:39:43,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:43,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:43,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:43,927 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:43,927 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679144877] [2021-06-05 00:39:43,927 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679144877] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:43,927 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:43,927 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:43,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130875752] [2021-06-05 00:39:43,927 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:43,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:43,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:43,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:43,928 INFO L87 Difference]: Start difference. First operand 5986 states and 16028 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:44,627 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:39:44,782 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:39:44,951 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:39:45,145 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:39:45,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:45,286 INFO L93 Difference]: Finished difference Result 21451 states and 55879 transitions. [2021-06-05 00:39:45,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:45,287 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:45,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:45,305 INFO L225 Difference]: With dead ends: 21451 [2021-06-05 00:39:45,305 INFO L226 Difference]: Without dead ends: 21451 [2021-06-05 00:39:45,305 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1250.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:45,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21451 states. [2021-06-05 00:39:45,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21451 to 5958. [2021-06-05 00:39:45,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5958 states, 5956 states have (on average 2.674278038952317) internal successors, (15928), 5957 states have internal predecessors, (15928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:45,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5958 states to 5958 states and 15928 transitions. [2021-06-05 00:39:45,433 INFO L78 Accepts]: Start accepts. Automaton has 5958 states and 15928 transitions. Word has length 114 [2021-06-05 00:39:45,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:45,434 INFO L482 AbstractCegarLoop]: Abstraction has 5958 states and 15928 transitions. [2021-06-05 00:39:45,434 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:45,434 INFO L276 IsEmpty]: Start isEmpty. Operand 5958 states and 15928 transitions. [2021-06-05 00:39:45,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:45,438 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:45,438 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:45,438 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-06-05 00:39:45,438 INFO L430 AbstractCegarLoop]: === Iteration 175 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:45,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:45,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1261771414, now seen corresponding path program 169 times [2021-06-05 00:39:45,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:45,439 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526560535] [2021-06-05 00:39:45,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:45,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:45,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:45,727 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:45,727 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526560535] [2021-06-05 00:39:45,727 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526560535] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:45,727 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:45,727 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:45,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119416597] [2021-06-05 00:39:45,727 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:45,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:45,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:45,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:45,727 INFO L87 Difference]: Start difference. First operand 5958 states and 15928 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:46,457 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:39:46,605 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:39:46,767 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:39:46,949 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:39:47,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:47,106 INFO L93 Difference]: Finished difference Result 20651 states and 54026 transitions. [2021-06-05 00:39:47,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:47,106 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:47,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:47,124 INFO L225 Difference]: With dead ends: 20651 [2021-06-05 00:39:47,125 INFO L226 Difference]: Without dead ends: 20651 [2021-06-05 00:39:47,125 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1221.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:47,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20651 states. [2021-06-05 00:39:47,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20651 to 5990. [2021-06-05 00:39:47,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5990 states, 5988 states have (on average 2.6753507014028055) internal successors, (16020), 5989 states have internal predecessors, (16020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:47,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5990 states to 5990 states and 16020 transitions. [2021-06-05 00:39:47,257 INFO L78 Accepts]: Start accepts. Automaton has 5990 states and 16020 transitions. Word has length 114 [2021-06-05 00:39:47,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:47,257 INFO L482 AbstractCegarLoop]: Abstraction has 5990 states and 16020 transitions. [2021-06-05 00:39:47,257 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:47,257 INFO L276 IsEmpty]: Start isEmpty. Operand 5990 states and 16020 transitions. [2021-06-05 00:39:47,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:47,261 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:47,261 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:47,261 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-06-05 00:39:47,262 INFO L430 AbstractCegarLoop]: === Iteration 176 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:47,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:47,262 INFO L82 PathProgramCache]: Analyzing trace with hash 873703208, now seen corresponding path program 170 times [2021-06-05 00:39:47,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:47,262 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740198753] [2021-06-05 00:39:47,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:47,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:47,578 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:47,578 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740198753] [2021-06-05 00:39:47,578 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740198753] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:47,578 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:47,578 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:47,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061482299] [2021-06-05 00:39:47,578 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:47,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:47,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:47,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:47,579 INFO L87 Difference]: Start difference. First operand 5990 states and 16020 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:48,311 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:39:48,458 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:39:48,646 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:39:48,824 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:39:48,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:48,986 INFO L93 Difference]: Finished difference Result 21497 states and 55886 transitions. [2021-06-05 00:39:48,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:48,986 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:48,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:49,005 INFO L225 Difference]: With dead ends: 21497 [2021-06-05 00:39:49,005 INFO L226 Difference]: Without dead ends: 21497 [2021-06-05 00:39:49,005 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1260.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:49,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21497 states. [2021-06-05 00:39:49,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21497 to 5974. [2021-06-05 00:39:49,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5974 states, 5972 states have (on average 2.674815807099799) internal successors, (15974), 5973 states have internal predecessors, (15974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:49,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 15974 transitions. [2021-06-05 00:39:49,131 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 15974 transitions. Word has length 114 [2021-06-05 00:39:49,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:49,131 INFO L482 AbstractCegarLoop]: Abstraction has 5974 states and 15974 transitions. [2021-06-05 00:39:49,131 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:49,131 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 15974 transitions. [2021-06-05 00:39:49,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:49,135 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:49,136 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:49,136 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-06-05 00:39:49,136 INFO L430 AbstractCegarLoop]: === Iteration 177 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:49,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:49,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1671566668, now seen corresponding path program 171 times [2021-06-05 00:39:49,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:49,136 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839535012] [2021-06-05 00:39:49,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:49,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:49,420 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:49,420 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839535012] [2021-06-05 00:39:49,420 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839535012] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:49,420 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:49,420 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:49,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298059437] [2021-06-05 00:39:49,420 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:49,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:49,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:49,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:49,420 INFO L87 Difference]: Start difference. First operand 5974 states and 15974 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:50,120 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:39:50,264 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:39:50,446 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:39:50,625 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:39:50,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:50,767 INFO L93 Difference]: Finished difference Result 20797 states and 54257 transitions. [2021-06-05 00:39:50,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:50,767 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:50,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:50,785 INFO L225 Difference]: With dead ends: 20797 [2021-06-05 00:39:50,785 INFO L226 Difference]: Without dead ends: 20797 [2021-06-05 00:39:50,785 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1238.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:50,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20797 states. [2021-06-05 00:39:50,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20797 to 5990. [2021-06-05 00:39:50,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5990 states, 5988 states have (on average 2.6753507014028055) internal successors, (16020), 5989 states have internal predecessors, (16020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:50,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5990 states to 5990 states and 16020 transitions. [2021-06-05 00:39:50,909 INFO L78 Accepts]: Start accepts. Automaton has 5990 states and 16020 transitions. Word has length 114 [2021-06-05 00:39:50,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:50,909 INFO L482 AbstractCegarLoop]: Abstraction has 5990 states and 16020 transitions. [2021-06-05 00:39:50,909 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:50,909 INFO L276 IsEmpty]: Start isEmpty. Operand 5990 states and 16020 transitions. [2021-06-05 00:39:50,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:50,914 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:50,914 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:50,914 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-06-05 00:39:50,914 INFO L430 AbstractCegarLoop]: === Iteration 178 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:50,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:50,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1423019688, now seen corresponding path program 172 times [2021-06-05 00:39:50,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:50,914 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39746663] [2021-06-05 00:39:50,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:50,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:51,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:51,197 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:51,197 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39746663] [2021-06-05 00:39:51,197 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39746663] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:51,197 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:51,197 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:51,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370958209] [2021-06-05 00:39:51,197 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:51,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:51,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:51,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:51,197 INFO L87 Difference]: Start difference. First operand 5990 states and 16020 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:51,913 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:39:52,074 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:39:52,233 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:39:52,414 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:39:52,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:52,564 INFO L93 Difference]: Finished difference Result 18055 states and 47345 transitions. [2021-06-05 00:39:52,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:52,565 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:52,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:52,582 INFO L225 Difference]: With dead ends: 18055 [2021-06-05 00:39:52,582 INFO L226 Difference]: Without dead ends: 18055 [2021-06-05 00:39:52,582 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1221.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:52,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18055 states. [2021-06-05 00:39:52,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18055 to 5946. [2021-06-05 00:39:52,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5946 states, 5944 states have (on average 2.6726110363391657) internal successors, (15886), 5945 states have internal predecessors, (15886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:52,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5946 states to 5946 states and 15886 transitions. [2021-06-05 00:39:52,695 INFO L78 Accepts]: Start accepts. Automaton has 5946 states and 15886 transitions. Word has length 114 [2021-06-05 00:39:52,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:52,696 INFO L482 AbstractCegarLoop]: Abstraction has 5946 states and 15886 transitions. [2021-06-05 00:39:52,696 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:52,696 INFO L276 IsEmpty]: Start isEmpty. Operand 5946 states and 15886 transitions. [2021-06-05 00:39:52,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:52,700 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:52,700 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:52,700 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-06-05 00:39:52,700 INFO L430 AbstractCegarLoop]: === Iteration 179 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:52,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:52,700 INFO L82 PathProgramCache]: Analyzing trace with hash 703534284, now seen corresponding path program 173 times [2021-06-05 00:39:52,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:52,701 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453936460] [2021-06-05 00:39:52,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:53,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:53,044 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:53,044 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453936460] [2021-06-05 00:39:53,044 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453936460] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:53,044 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:53,044 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:53,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824504663] [2021-06-05 00:39:53,044 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:53,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:53,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:53,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:53,045 INFO L87 Difference]: Start difference. First operand 5946 states and 15886 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:53,766 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:39:53,907 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:39:54,087 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:39:54,270 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:39:54,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:54,427 INFO L93 Difference]: Finished difference Result 19247 states and 50737 transitions. [2021-06-05 00:39:54,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:54,427 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:54,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:54,445 INFO L225 Difference]: With dead ends: 19247 [2021-06-05 00:39:54,445 INFO L226 Difference]: Without dead ends: 19247 [2021-06-05 00:39:54,445 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1257.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:54,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19247 states. [2021-06-05 00:39:54,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19247 to 5994. [2021-06-05 00:39:54,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5994 states, 5992 states have (on average 2.6742323097463285) internal successors, (16024), 5993 states have internal predecessors, (16024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:54,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5994 states to 5994 states and 16024 transitions. [2021-06-05 00:39:54,565 INFO L78 Accepts]: Start accepts. Automaton has 5994 states and 16024 transitions. Word has length 114 [2021-06-05 00:39:54,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:54,565 INFO L482 AbstractCegarLoop]: Abstraction has 5994 states and 16024 transitions. [2021-06-05 00:39:54,565 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:54,565 INFO L276 IsEmpty]: Start isEmpty. Operand 5994 states and 16024 transitions. [2021-06-05 00:39:54,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:54,569 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:54,569 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:54,569 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-06-05 00:39:54,569 INFO L430 AbstractCegarLoop]: === Iteration 180 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:54,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:54,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1678196276, now seen corresponding path program 174 times [2021-06-05 00:39:54,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:54,570 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023416723] [2021-06-05 00:39:54,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:54,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:54,876 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:54,876 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023416723] [2021-06-05 00:39:54,876 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023416723] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:54,876 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:54,876 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:54,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981683908] [2021-06-05 00:39:54,876 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:54,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:54,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:54,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:54,877 INFO L87 Difference]: Start difference. First operand 5994 states and 16024 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:55,594 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:39:55,776 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:39:55,941 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:39:56,127 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:39:56,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:56,286 INFO L93 Difference]: Finished difference Result 19323 states and 50873 transitions. [2021-06-05 00:39:56,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:56,286 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:56,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:56,304 INFO L225 Difference]: With dead ends: 19323 [2021-06-05 00:39:56,304 INFO L226 Difference]: Without dead ends: 19323 [2021-06-05 00:39:56,304 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1254.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:56,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19323 states. [2021-06-05 00:39:56,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19323 to 6010. [2021-06-05 00:39:56,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6010 states, 6008 states have (on average 2.6747669773635154) internal successors, (16070), 6009 states have internal predecessors, (16070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:56,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6010 states to 6010 states and 16070 transitions. [2021-06-05 00:39:56,425 INFO L78 Accepts]: Start accepts. Automaton has 6010 states and 16070 transitions. Word has length 114 [2021-06-05 00:39:56,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:56,425 INFO L482 AbstractCegarLoop]: Abstraction has 6010 states and 16070 transitions. [2021-06-05 00:39:56,425 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:56,425 INFO L276 IsEmpty]: Start isEmpty. Operand 6010 states and 16070 transitions. [2021-06-05 00:39:56,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:56,430 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:56,430 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:56,430 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-06-05 00:39:56,430 INFO L430 AbstractCegarLoop]: === Iteration 181 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:56,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:56,430 INFO L82 PathProgramCache]: Analyzing trace with hash 457278346, now seen corresponding path program 175 times [2021-06-05 00:39:56,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:56,430 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161671335] [2021-06-05 00:39:56,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:56,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:56,745 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:56,745 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161671335] [2021-06-05 00:39:56,745 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161671335] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:56,745 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:56,745 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:56,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234658028] [2021-06-05 00:39:56,745 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:56,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:56,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:56,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:56,746 INFO L87 Difference]: Start difference. First operand 6010 states and 16070 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:57,457 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:39:57,617 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:39:57,789 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:39:57,967 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:39:58,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:58,111 INFO L93 Difference]: Finished difference Result 18707 states and 48899 transitions. [2021-06-05 00:39:58,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:58,112 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:58,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:58,128 INFO L225 Difference]: With dead ends: 18707 [2021-06-05 00:39:58,128 INFO L226 Difference]: Without dead ends: 18707 [2021-06-05 00:39:58,128 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1257.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:58,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18707 states. [2021-06-05 00:39:58,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18707 to 5962. [2021-06-05 00:39:58,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5962 states, 5960 states have (on average 2.6731543624161076) internal successors, (15932), 5961 states have internal predecessors, (15932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:58,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5962 states to 5962 states and 15932 transitions. [2021-06-05 00:39:58,245 INFO L78 Accepts]: Start accepts. Automaton has 5962 states and 15932 transitions. Word has length 114 [2021-06-05 00:39:58,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:58,245 INFO L482 AbstractCegarLoop]: Abstraction has 5962 states and 15932 transitions. [2021-06-05 00:39:58,245 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:58,245 INFO L276 IsEmpty]: Start isEmpty. Operand 5962 states and 15932 transitions. [2021-06-05 00:39:58,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:39:58,249 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:58,249 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:58,249 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-06-05 00:39:58,249 INFO L430 AbstractCegarLoop]: === Iteration 182 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:58,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:58,250 INFO L82 PathProgramCache]: Analyzing trace with hash 324716970, now seen corresponding path program 176 times [2021-06-05 00:39:58,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:58,250 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455602876] [2021-06-05 00:39:58,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:58,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:58,594 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:58,594 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455602876] [2021-06-05 00:39:58,594 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455602876] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:58,594 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:58,594 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:39:58,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147045331] [2021-06-05 00:39:58,594 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:39:58,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:58,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:39:58,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:39:58,595 INFO L87 Difference]: Start difference. First operand 5962 states and 15932 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:59,431 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:39:59,609 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:39:59,792 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:39:59,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:59,931 INFO L93 Difference]: Finished difference Result 15467 states and 40652 transitions. [2021-06-05 00:39:59,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:39:59,931 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:39:59,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:59,944 INFO L225 Difference]: With dead ends: 15467 [2021-06-05 00:39:59,944 INFO L226 Difference]: Without dead ends: 15467 [2021-06-05 00:39:59,945 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1227.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:39:59,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15467 states. [2021-06-05 00:40:00,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15467 to 5934. [2021-06-05 00:40:00,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5934 states, 5932 states have (on average 2.671948752528658) internal successors, (15850), 5933 states have internal predecessors, (15850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:00,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5934 states to 5934 states and 15850 transitions. [2021-06-05 00:40:00,043 INFO L78 Accepts]: Start accepts. Automaton has 5934 states and 15850 transitions. Word has length 114 [2021-06-05 00:40:00,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:00,044 INFO L482 AbstractCegarLoop]: Abstraction has 5934 states and 15850 transitions. [2021-06-05 00:40:00,044 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:00,044 INFO L276 IsEmpty]: Start isEmpty. Operand 5934 states and 15850 transitions. [2021-06-05 00:40:00,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:00,048 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:00,048 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:00,048 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-06-05 00:40:00,048 INFO L430 AbstractCegarLoop]: === Iteration 183 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:00,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:00,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1636233162, now seen corresponding path program 177 times [2021-06-05 00:40:00,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:00,048 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992193791] [2021-06-05 00:40:00,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:00,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:00,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:00,347 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:00,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992193791] [2021-06-05 00:40:00,347 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992193791] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:00,347 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:00,347 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:00,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709040067] [2021-06-05 00:40:00,348 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:00,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:00,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:00,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:00,348 INFO L87 Difference]: Start difference. First operand 5934 states and 15850 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:01,079 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:40:01,232 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:40:01,409 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:40:01,610 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:40:01,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:01,775 INFO L93 Difference]: Finished difference Result 15229 states and 39989 transitions. [2021-06-05 00:40:01,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:01,775 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:01,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:01,790 INFO L225 Difference]: With dead ends: 15229 [2021-06-05 00:40:01,790 INFO L226 Difference]: Without dead ends: 15229 [2021-06-05 00:40:01,790 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1252.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:01,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15229 states. [2021-06-05 00:40:01,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15229 to 6062. [2021-06-05 00:40:01,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6062 states, 6060 states have (on average 2.6762376237623764) internal successors, (16218), 6061 states have internal predecessors, (16218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:01,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6062 states to 6062 states and 16218 transitions. [2021-06-05 00:40:01,901 INFO L78 Accepts]: Start accepts. Automaton has 6062 states and 16218 transitions. Word has length 114 [2021-06-05 00:40:01,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:01,901 INFO L482 AbstractCegarLoop]: Abstraction has 6062 states and 16218 transitions. [2021-06-05 00:40:01,902 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:01,902 INFO L276 IsEmpty]: Start isEmpty. Operand 6062 states and 16218 transitions. [2021-06-05 00:40:01,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:01,906 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:01,906 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:01,906 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-06-05 00:40:01,906 INFO L430 AbstractCegarLoop]: === Iteration 184 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:01,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:01,907 INFO L82 PathProgramCache]: Analyzing trace with hash -745497398, now seen corresponding path program 178 times [2021-06-05 00:40:01,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:01,907 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805339815] [2021-06-05 00:40:01,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:02,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:02,212 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:02,212 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805339815] [2021-06-05 00:40:02,212 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805339815] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:02,212 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:02,212 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:02,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918402414] [2021-06-05 00:40:02,213 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:02,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:02,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:02,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:02,213 INFO L87 Difference]: Start difference. First operand 6062 states and 16218 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:02,946 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:40:03,124 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:40:03,288 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:40:03,476 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:40:03,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:03,631 INFO L93 Difference]: Finished difference Result 17853 states and 46712 transitions. [2021-06-05 00:40:03,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:03,631 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:03,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:03,648 INFO L225 Difference]: With dead ends: 17853 [2021-06-05 00:40:03,648 INFO L226 Difference]: Without dead ends: 17853 [2021-06-05 00:40:03,648 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1256.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:03,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17853 states. [2021-06-05 00:40:03,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17853 to 6078. [2021-06-05 00:40:03,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6078 states, 6076 states have (on average 2.676761026991442) internal successors, (16264), 6077 states have internal predecessors, (16264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:03,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6078 states to 6078 states and 16264 transitions. [2021-06-05 00:40:03,765 INFO L78 Accepts]: Start accepts. Automaton has 6078 states and 16264 transitions. Word has length 114 [2021-06-05 00:40:03,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:03,765 INFO L482 AbstractCegarLoop]: Abstraction has 6078 states and 16264 transitions. [2021-06-05 00:40:03,765 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:03,765 INFO L276 IsEmpty]: Start isEmpty. Operand 6078 states and 16264 transitions. [2021-06-05 00:40:03,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:03,769 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:03,769 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:03,770 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2021-06-05 00:40:03,770 INFO L430 AbstractCegarLoop]: === Iteration 185 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:03,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:03,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1389977224, now seen corresponding path program 179 times [2021-06-05 00:40:03,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:03,770 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793070727] [2021-06-05 00:40:03,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:04,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:04,103 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:04,103 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793070727] [2021-06-05 00:40:04,103 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793070727] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:04,104 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:04,104 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:04,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438432285] [2021-06-05 00:40:04,104 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:04,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:04,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:04,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:04,104 INFO L87 Difference]: Start difference. First operand 6078 states and 16264 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:04,818 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:40:04,973 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:40:05,146 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:40:05,327 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:40:05,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:05,462 INFO L93 Difference]: Finished difference Result 16133 states and 42000 transitions. [2021-06-05 00:40:05,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:05,462 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:05,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:05,478 INFO L225 Difference]: With dead ends: 16133 [2021-06-05 00:40:05,478 INFO L226 Difference]: Without dead ends: 16133 [2021-06-05 00:40:05,479 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1249.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:05,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16133 states. [2021-06-05 00:40:05,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16133 to 6030. [2021-06-05 00:40:05,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6030 states, 6028 states have (on average 2.6751824817518246) internal successors, (16126), 6029 states have internal predecessors, (16126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:05,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6030 states to 6030 states and 16126 transitions. [2021-06-05 00:40:05,588 INFO L78 Accepts]: Start accepts. Automaton has 6030 states and 16126 transitions. Word has length 114 [2021-06-05 00:40:05,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:05,588 INFO L482 AbstractCegarLoop]: Abstraction has 6030 states and 16126 transitions. [2021-06-05 00:40:05,588 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:05,588 INFO L276 IsEmpty]: Start isEmpty. Operand 6030 states and 16126 transitions. [2021-06-05 00:40:05,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:05,593 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:05,593 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:05,593 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2021-06-05 00:40:05,593 INFO L430 AbstractCegarLoop]: === Iteration 186 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:05,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:05,594 INFO L82 PathProgramCache]: Analyzing trace with hash -423750774, now seen corresponding path program 180 times [2021-06-05 00:40:05,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:05,594 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472158370] [2021-06-05 00:40:05,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:05,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:05,887 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:05,887 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472158370] [2021-06-05 00:40:05,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472158370] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:05,887 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:05,887 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:05,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372097642] [2021-06-05 00:40:05,888 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:05,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:05,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:05,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:05,888 INFO L87 Difference]: Start difference. First operand 6030 states and 16126 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:06,606 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:40:06,779 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:40:06,938 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:40:07,118 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:40:07,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:07,265 INFO L93 Difference]: Finished difference Result 19209 states and 49929 transitions. [2021-06-05 00:40:07,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:07,265 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:07,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:07,284 INFO L225 Difference]: With dead ends: 19209 [2021-06-05 00:40:07,284 INFO L226 Difference]: Without dead ends: 19209 [2021-06-05 00:40:07,284 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1249.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:07,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19209 states. [2021-06-05 00:40:07,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19209 to 6062. [2021-06-05 00:40:07,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6062 states, 6060 states have (on average 2.6762376237623764) internal successors, (16218), 6061 states have internal predecessors, (16218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:07,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6062 states to 6062 states and 16218 transitions. [2021-06-05 00:40:07,410 INFO L78 Accepts]: Start accepts. Automaton has 6062 states and 16218 transitions. Word has length 114 [2021-06-05 00:40:07,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:07,410 INFO L482 AbstractCegarLoop]: Abstraction has 6062 states and 16218 transitions. [2021-06-05 00:40:07,410 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:07,410 INFO L276 IsEmpty]: Start isEmpty. Operand 6062 states and 16218 transitions. [2021-06-05 00:40:07,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:07,414 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:07,414 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:07,414 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2021-06-05 00:40:07,415 INFO L430 AbstractCegarLoop]: === Iteration 187 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:07,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:07,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1711723848, now seen corresponding path program 181 times [2021-06-05 00:40:07,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:07,415 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128298587] [2021-06-05 00:40:07,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:07,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:07,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:07,718 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:07,718 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128298587] [2021-06-05 00:40:07,719 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128298587] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:07,719 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:07,719 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:07,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518955793] [2021-06-05 00:40:07,719 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:07,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:07,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:07,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:07,719 INFO L87 Difference]: Start difference. First operand 6062 states and 16218 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:08,470 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:40:08,619 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:40:08,798 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:40:08,980 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:40:09,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:09,148 INFO L93 Difference]: Finished difference Result 20055 states and 51789 transitions. [2021-06-05 00:40:09,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:09,148 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:09,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:09,166 INFO L225 Difference]: With dead ends: 20055 [2021-06-05 00:40:09,167 INFO L226 Difference]: Without dead ends: 20055 [2021-06-05 00:40:09,167 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1249.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:09,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20055 states. [2021-06-05 00:40:09,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20055 to 6046. [2021-06-05 00:40:09,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6046 states, 6044 states have (on average 2.6757114493712773) internal successors, (16172), 6045 states have internal predecessors, (16172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:09,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6046 states to 6046 states and 16172 transitions. [2021-06-05 00:40:09,291 INFO L78 Accepts]: Start accepts. Automaton has 6046 states and 16172 transitions. Word has length 114 [2021-06-05 00:40:09,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:09,291 INFO L482 AbstractCegarLoop]: Abstraction has 6046 states and 16172 transitions. [2021-06-05 00:40:09,291 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:09,291 INFO L276 IsEmpty]: Start isEmpty. Operand 6046 states and 16172 transitions. [2021-06-05 00:40:09,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:09,296 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:09,296 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:09,296 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2021-06-05 00:40:09,296 INFO L430 AbstractCegarLoop]: === Iteration 188 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:09,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:09,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1785379988, now seen corresponding path program 182 times [2021-06-05 00:40:09,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:09,296 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663590317] [2021-06-05 00:40:09,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:09,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:09,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:09,610 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:09,610 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663590317] [2021-06-05 00:40:09,610 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663590317] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:09,610 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:09,610 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:09,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047803994] [2021-06-05 00:40:09,610 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:09,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:09,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:09,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:09,610 INFO L87 Difference]: Start difference. First operand 6046 states and 16172 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:10,324 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:40:10,469 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:40:10,640 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:40:10,820 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:40:10,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:10,966 INFO L93 Difference]: Finished difference Result 19355 states and 50160 transitions. [2021-06-05 00:40:10,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:10,966 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:10,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:10,983 INFO L225 Difference]: With dead ends: 19355 [2021-06-05 00:40:10,983 INFO L226 Difference]: Without dead ends: 19355 [2021-06-05 00:40:10,983 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1232.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:11,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19355 states. [2021-06-05 00:40:11,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19355 to 6062. [2021-06-05 00:40:11,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6062 states, 6060 states have (on average 2.6762376237623764) internal successors, (16218), 6061 states have internal predecessors, (16218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:11,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6062 states to 6062 states and 16218 transitions. [2021-06-05 00:40:11,102 INFO L78 Accepts]: Start accepts. Automaton has 6062 states and 16218 transitions. Word has length 114 [2021-06-05 00:40:11,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:11,102 INFO L482 AbstractCegarLoop]: Abstraction has 6062 states and 16218 transitions. [2021-06-05 00:40:11,102 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:11,102 INFO L276 IsEmpty]: Start isEmpty. Operand 6062 states and 16218 transitions. [2021-06-05 00:40:11,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:11,106 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:11,107 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:11,107 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2021-06-05 00:40:11,107 INFO L430 AbstractCegarLoop]: === Iteration 189 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:11,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:11,107 INFO L82 PathProgramCache]: Analyzing trace with hash -2033926968, now seen corresponding path program 183 times [2021-06-05 00:40:11,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:11,107 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852284039] [2021-06-05 00:40:11,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:11,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:11,394 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:11,394 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852284039] [2021-06-05 00:40:11,394 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852284039] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:11,394 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:11,394 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:11,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562375170] [2021-06-05 00:40:11,394 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:11,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:11,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:11,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:11,394 INFO L87 Difference]: Start difference. First operand 6062 states and 16218 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:12,131 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:40:12,296 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:40:12,458 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:40:12,643 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:40:12,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:12,778 INFO L93 Difference]: Finished difference Result 16313 states and 42498 transitions. [2021-06-05 00:40:12,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:12,778 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:12,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:12,793 INFO L225 Difference]: With dead ends: 16313 [2021-06-05 00:40:12,793 INFO L226 Difference]: Without dead ends: 16313 [2021-06-05 00:40:12,793 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1228.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:12,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16313 states. [2021-06-05 00:40:12,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16313 to 5998. [2021-06-05 00:40:12,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5998 states, 5996 states have (on average 2.674116077384923) internal successors, (16034), 5997 states have internal predecessors, (16034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:12,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5998 states to 5998 states and 16034 transitions. [2021-06-05 00:40:12,899 INFO L78 Accepts]: Start accepts. Automaton has 5998 states and 16034 transitions. Word has length 114 [2021-06-05 00:40:12,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:12,899 INFO L482 AbstractCegarLoop]: Abstraction has 5998 states and 16034 transitions. [2021-06-05 00:40:12,899 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:12,899 INFO L276 IsEmpty]: Start isEmpty. Operand 5998 states and 16034 transitions. [2021-06-05 00:40:12,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:12,904 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:12,904 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:12,904 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2021-06-05 00:40:12,904 INFO L430 AbstractCegarLoop]: === Iteration 190 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:12,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:12,904 INFO L82 PathProgramCache]: Analyzing trace with hash -558952948, now seen corresponding path program 184 times [2021-06-05 00:40:12,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:12,904 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345126729] [2021-06-05 00:40:12,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:13,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:13,184 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:13,184 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345126729] [2021-06-05 00:40:13,185 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345126729] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:13,185 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:13,185 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:13,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575142834] [2021-06-05 00:40:13,185 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:13,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:13,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:13,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:13,185 INFO L87 Difference]: Start difference. First operand 5998 states and 16034 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:13,902 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:40:14,047 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:40:14,206 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:40:14,386 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:40:14,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:14,518 INFO L93 Difference]: Finished difference Result 14789 states and 38763 transitions. [2021-06-05 00:40:14,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:14,518 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:14,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:14,532 INFO L225 Difference]: With dead ends: 14789 [2021-06-05 00:40:14,532 INFO L226 Difference]: Without dead ends: 14789 [2021-06-05 00:40:14,533 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1215.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:14,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14789 states. [2021-06-05 00:40:14,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14789 to 6062. [2021-06-05 00:40:14,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6062 states, 6060 states have (on average 2.6762376237623764) internal successors, (16218), 6061 states have internal predecessors, (16218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:14,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6062 states to 6062 states and 16218 transitions. [2021-06-05 00:40:14,639 INFO L78 Accepts]: Start accepts. Automaton has 6062 states and 16218 transitions. Word has length 114 [2021-06-05 00:40:14,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:14,639 INFO L482 AbstractCegarLoop]: Abstraction has 6062 states and 16218 transitions. [2021-06-05 00:40:14,639 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:14,639 INFO L276 IsEmpty]: Start isEmpty. Operand 6062 states and 16218 transitions. [2021-06-05 00:40:14,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:14,643 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:14,643 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:14,644 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2021-06-05 00:40:14,644 INFO L430 AbstractCegarLoop]: === Iteration 191 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:14,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:14,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1576521674, now seen corresponding path program 185 times [2021-06-05 00:40:14,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:14,644 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652406402] [2021-06-05 00:40:14,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:14,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:14,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:14,958 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:14,958 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652406402] [2021-06-05 00:40:14,958 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652406402] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:14,959 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:14,959 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:14,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882746136] [2021-06-05 00:40:14,959 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:14,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:14,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:14,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:14,959 INFO L87 Difference]: Start difference. First operand 6062 states and 16218 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:15,682 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:40:15,827 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:40:15,998 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:40:16,173 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:40:16,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:16,303 INFO L93 Difference]: Finished difference Result 15635 states and 40623 transitions. [2021-06-05 00:40:16,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:16,304 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:16,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:16,317 INFO L225 Difference]: With dead ends: 15635 [2021-06-05 00:40:16,317 INFO L226 Difference]: Without dead ends: 15635 [2021-06-05 00:40:16,317 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1235.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:16,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15635 states. [2021-06-05 00:40:16,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15635 to 6046. [2021-06-05 00:40:16,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6046 states, 6044 states have (on average 2.6757114493712773) internal successors, (16172), 6045 states have internal predecessors, (16172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:16,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6046 states to 6046 states and 16172 transitions. [2021-06-05 00:40:16,416 INFO L78 Accepts]: Start accepts. Automaton has 6046 states and 16172 transitions. Word has length 114 [2021-06-05 00:40:16,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:16,416 INFO L482 AbstractCegarLoop]: Abstraction has 6046 states and 16172 transitions. [2021-06-05 00:40:16,416 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:16,416 INFO L276 IsEmpty]: Start isEmpty. Operand 6046 states and 16172 transitions. [2021-06-05 00:40:16,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:16,420 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:16,420 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:16,421 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2021-06-05 00:40:16,421 INFO L430 AbstractCegarLoop]: === Iteration 192 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:16,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:16,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1920582162, now seen corresponding path program 186 times [2021-06-05 00:40:16,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:16,422 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175996233] [2021-06-05 00:40:16,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:16,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:16,709 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:16,709 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175996233] [2021-06-05 00:40:16,709 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175996233] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:16,709 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:16,709 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:16,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648964744] [2021-06-05 00:40:16,709 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:16,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:16,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:16,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:16,710 INFO L87 Difference]: Start difference. First operand 6046 states and 16172 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:17,437 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:40:17,586 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:40:17,774 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:40:17,956 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:40:18,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:18,115 INFO L93 Difference]: Finished difference Result 18841 states and 48737 transitions. [2021-06-05 00:40:18,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:18,116 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:18,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:18,132 INFO L225 Difference]: With dead ends: 18841 [2021-06-05 00:40:18,132 INFO L226 Difference]: Without dead ends: 18841 [2021-06-05 00:40:18,133 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1226.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:18,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18841 states. [2021-06-05 00:40:18,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18841 to 6062. [2021-06-05 00:40:18,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6062 states, 6060 states have (on average 2.6762376237623764) internal successors, (16218), 6061 states have internal predecessors, (16218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:18,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6062 states to 6062 states and 16218 transitions. [2021-06-05 00:40:18,250 INFO L78 Accepts]: Start accepts. Automaton has 6062 states and 16218 transitions. Word has length 114 [2021-06-05 00:40:18,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:18,250 INFO L482 AbstractCegarLoop]: Abstraction has 6062 states and 16218 transitions. [2021-06-05 00:40:18,250 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:18,250 INFO L276 IsEmpty]: Start isEmpty. Operand 6062 states and 16218 transitions. [2021-06-05 00:40:18,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:18,255 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:18,255 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:18,255 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2021-06-05 00:40:18,255 INFO L430 AbstractCegarLoop]: === Iteration 193 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:18,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:18,255 INFO L82 PathProgramCache]: Analyzing trace with hash 2125838154, now seen corresponding path program 187 times [2021-06-05 00:40:18,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:18,255 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693514319] [2021-06-05 00:40:18,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:18,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:18,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:18,539 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:18,539 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693514319] [2021-06-05 00:40:18,539 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693514319] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:18,539 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:18,539 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:18,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120595388] [2021-06-05 00:40:18,539 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:18,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:18,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:18,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:18,540 INFO L87 Difference]: Start difference. First operand 6062 states and 16218 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:19,263 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:40:19,410 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:40:19,570 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:40:19,752 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:40:19,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:19,887 INFO L93 Difference]: Finished difference Result 15799 states and 41075 transitions. [2021-06-05 00:40:19,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:19,887 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:19,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:19,900 INFO L225 Difference]: With dead ends: 15799 [2021-06-05 00:40:19,901 INFO L226 Difference]: Without dead ends: 15799 [2021-06-05 00:40:19,901 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1210.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:19,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15799 states. [2021-06-05 00:40:19,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15799 to 6030. [2021-06-05 00:40:19,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6030 states, 6028 states have (on average 2.6751824817518246) internal successors, (16126), 6029 states have internal predecessors, (16126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:20,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6030 states to 6030 states and 16126 transitions. [2021-06-05 00:40:20,000 INFO L78 Accepts]: Start accepts. Automaton has 6030 states and 16126 transitions. Word has length 114 [2021-06-05 00:40:20,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:20,000 INFO L482 AbstractCegarLoop]: Abstraction has 6030 states and 16126 transitions. [2021-06-05 00:40:20,000 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:20,000 INFO L276 IsEmpty]: Start isEmpty. Operand 6030 states and 16126 transitions. [2021-06-05 00:40:20,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:20,005 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:20,005 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:20,005 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2021-06-05 00:40:20,005 INFO L430 AbstractCegarLoop]: === Iteration 194 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:20,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:20,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1105567848, now seen corresponding path program 188 times [2021-06-05 00:40:20,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:20,006 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592554033] [2021-06-05 00:40:20,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:20,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:20,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:20,354 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:20,354 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592554033] [2021-06-05 00:40:20,354 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592554033] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:20,354 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:20,354 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:20,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229019117] [2021-06-05 00:40:20,354 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:20,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:20,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:20,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:20,355 INFO L87 Difference]: Start difference. First operand 6030 states and 16126 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:21,050 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:40:21,205 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:40:21,374 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:40:21,551 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:40:21,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:21,683 INFO L93 Difference]: Finished difference Result 14919 states and 38948 transitions. [2021-06-05 00:40:21,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:21,684 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:21,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:21,697 INFO L225 Difference]: With dead ends: 14919 [2021-06-05 00:40:21,697 INFO L226 Difference]: Without dead ends: 14919 [2021-06-05 00:40:21,697 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1282.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:21,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14919 states. [2021-06-05 00:40:21,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14919 to 6078. [2021-06-05 00:40:21,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6078 states, 6076 states have (on average 2.676761026991442) internal successors, (16264), 6077 states have internal predecessors, (16264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:21,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6078 states to 6078 states and 16264 transitions. [2021-06-05 00:40:21,792 INFO L78 Accepts]: Start accepts. Automaton has 6078 states and 16264 transitions. Word has length 114 [2021-06-05 00:40:21,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:21,792 INFO L482 AbstractCegarLoop]: Abstraction has 6078 states and 16264 transitions. [2021-06-05 00:40:21,792 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:21,792 INFO L276 IsEmpty]: Start isEmpty. Operand 6078 states and 16264 transitions. [2021-06-05 00:40:21,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:21,796 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:21,796 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:21,796 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2021-06-05 00:40:21,797 INFO L430 AbstractCegarLoop]: === Iteration 195 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:21,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:21,797 INFO L82 PathProgramCache]: Analyzing trace with hash 857020868, now seen corresponding path program 189 times [2021-06-05 00:40:21,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:21,797 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301990692] [2021-06-05 00:40:21,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:22,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:22,090 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:22,090 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301990692] [2021-06-05 00:40:22,090 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301990692] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:22,090 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:22,090 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:22,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484962880] [2021-06-05 00:40:22,091 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:22,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:22,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:22,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:22,091 INFO L87 Difference]: Start difference. First operand 6078 states and 16264 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:22,784 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:40:22,939 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:40:23,114 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:40:23,293 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:40:23,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:23,412 INFO L93 Difference]: Finished difference Result 14755 states and 38546 transitions. [2021-06-05 00:40:23,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:23,412 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:23,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:23,424 INFO L225 Difference]: With dead ends: 14755 [2021-06-05 00:40:23,424 INFO L226 Difference]: Without dead ends: 14755 [2021-06-05 00:40:23,424 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1232.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:23,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14755 states. [2021-06-05 00:40:23,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14755 to 6062. [2021-06-05 00:40:23,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6062 states, 6060 states have (on average 2.6762376237623764) internal successors, (16218), 6061 states have internal predecessors, (16218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:23,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6062 states to 6062 states and 16218 transitions. [2021-06-05 00:40:23,517 INFO L78 Accepts]: Start accepts. Automaton has 6062 states and 16218 transitions. Word has length 114 [2021-06-05 00:40:23,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:23,517 INFO L482 AbstractCegarLoop]: Abstraction has 6062 states and 16218 transitions. [2021-06-05 00:40:23,517 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:23,517 INFO L276 IsEmpty]: Start isEmpty. Operand 6062 states and 16218 transitions. [2021-06-05 00:40:23,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:23,521 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:23,521 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:23,521 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2021-06-05 00:40:23,521 INFO L430 AbstractCegarLoop]: === Iteration 196 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:23,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:23,522 INFO L82 PathProgramCache]: Analyzing trace with hash -299796436, now seen corresponding path program 190 times [2021-06-05 00:40:23,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:23,522 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351387841] [2021-06-05 00:40:23,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:23,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:23,815 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:23,815 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351387841] [2021-06-05 00:40:23,815 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351387841] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:23,815 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:23,815 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:23,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119288321] [2021-06-05 00:40:23,815 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:23,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:23,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:23,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:23,816 INFO L87 Difference]: Start difference. First operand 6062 states and 16218 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:24,513 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:40:24,649 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:40:24,817 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:40:24,997 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:40:25,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:25,121 INFO L93 Difference]: Finished difference Result 12113 states and 31868 transitions. [2021-06-05 00:40:25,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:25,122 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:25,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:25,133 INFO L225 Difference]: With dead ends: 12113 [2021-06-05 00:40:25,133 INFO L226 Difference]: Without dead ends: 12113 [2021-06-05 00:40:25,133 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1207.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:25,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12113 states. [2021-06-05 00:40:25,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12113 to 5946. [2021-06-05 00:40:25,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5946 states, 5944 states have (on average 2.6695827725437415) internal successors, (15868), 5945 states have internal predecessors, (15868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:25,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5946 states to 5946 states and 15868 transitions. [2021-06-05 00:40:25,222 INFO L78 Accepts]: Start accepts. Automaton has 5946 states and 15868 transitions. Word has length 114 [2021-06-05 00:40:25,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:25,222 INFO L482 AbstractCegarLoop]: Abstraction has 5946 states and 15868 transitions. [2021-06-05 00:40:25,223 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:25,223 INFO L276 IsEmpty]: Start isEmpty. Operand 5946 states and 15868 transitions. [2021-06-05 00:40:25,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:25,227 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:25,227 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:25,227 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2021-06-05 00:40:25,227 INFO L430 AbstractCegarLoop]: === Iteration 197 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:25,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:25,228 INFO L82 PathProgramCache]: Analyzing trace with hash 844759660, now seen corresponding path program 191 times [2021-06-05 00:40:25,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:25,228 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132667151] [2021-06-05 00:40:25,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:25,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:25,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:25,529 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:25,529 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132667151] [2021-06-05 00:40:25,529 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132667151] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:25,529 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:25,529 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:25,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505468559] [2021-06-05 00:40:25,529 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:25,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:25,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:25,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:25,530 INFO L87 Difference]: Start difference. First operand 5946 states and 15868 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:26,259 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:40:26,395 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:40:26,570 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:40:26,753 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:40:26,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:26,904 INFO L93 Difference]: Finished difference Result 14925 states and 39163 transitions. [2021-06-05 00:40:26,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:26,905 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:26,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:26,917 INFO L225 Difference]: With dead ends: 14925 [2021-06-05 00:40:26,917 INFO L226 Difference]: Without dead ends: 14925 [2021-06-05 00:40:26,918 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1211.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:26,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14925 states. [2021-06-05 00:40:27,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14925 to 6026. [2021-06-05 00:40:27,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6026 states, 6024 states have (on average 2.6723107569721116) internal successors, (16098), 6025 states have internal predecessors, (16098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:27,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6026 states to 6026 states and 16098 transitions. [2021-06-05 00:40:27,015 INFO L78 Accepts]: Start accepts. Automaton has 6026 states and 16098 transitions. Word has length 114 [2021-06-05 00:40:27,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:27,015 INFO L482 AbstractCegarLoop]: Abstraction has 6026 states and 16098 transitions. [2021-06-05 00:40:27,015 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:27,015 INFO L276 IsEmpty]: Start isEmpty. Operand 6026 states and 16098 transitions. [2021-06-05 00:40:27,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:27,019 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:27,019 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:27,019 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2021-06-05 00:40:27,019 INFO L430 AbstractCegarLoop]: === Iteration 198 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:27,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:27,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1536970900, now seen corresponding path program 192 times [2021-06-05 00:40:27,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:27,020 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884130950] [2021-06-05 00:40:27,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:27,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:27,315 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:27,315 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884130950] [2021-06-05 00:40:27,315 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884130950] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:27,315 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:27,315 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:27,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249538380] [2021-06-05 00:40:27,315 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:27,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:27,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:27,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:27,315 INFO L87 Difference]: Start difference. First operand 6026 states and 16098 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:28,024 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:40:28,187 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:40:28,347 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:40:28,545 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:40:28,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:28,698 INFO L93 Difference]: Finished difference Result 17549 states and 45886 transitions. [2021-06-05 00:40:28,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:28,698 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:28,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:28,714 INFO L225 Difference]: With dead ends: 17549 [2021-06-05 00:40:28,714 INFO L226 Difference]: Without dead ends: 17549 [2021-06-05 00:40:28,714 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1234.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:28,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17549 states. [2021-06-05 00:40:28,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17549 to 6042. [2021-06-05 00:40:28,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6042 states, 6040 states have (on average 2.672847682119205) internal successors, (16144), 6041 states have internal predecessors, (16144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:28,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6042 states to 6042 states and 16144 transitions. [2021-06-05 00:40:28,822 INFO L78 Accepts]: Start accepts. Automaton has 6042 states and 16144 transitions. Word has length 114 [2021-06-05 00:40:28,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:28,822 INFO L482 AbstractCegarLoop]: Abstraction has 6042 states and 16144 transitions. [2021-06-05 00:40:28,822 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:28,822 INFO L276 IsEmpty]: Start isEmpty. Operand 6042 states and 16144 transitions. [2021-06-05 00:40:28,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:28,827 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:28,827 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:28,827 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2021-06-05 00:40:28,827 INFO L430 AbstractCegarLoop]: === Iteration 199 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:28,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:28,827 INFO L82 PathProgramCache]: Analyzing trace with hash 598503722, now seen corresponding path program 193 times [2021-06-05 00:40:28,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:28,827 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372932457] [2021-06-05 00:40:28,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:29,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:29,124 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:29,124 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372932457] [2021-06-05 00:40:29,124 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372932457] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:29,124 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:29,124 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:29,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211387342] [2021-06-05 00:40:29,125 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:29,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:29,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:29,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:29,125 INFO L87 Difference]: Start difference. First operand 6042 states and 16144 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:29,813 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:40:29,968 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:40:30,136 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:40:30,311 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:40:30,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:30,449 INFO L93 Difference]: Finished difference Result 15829 states and 41174 transitions. [2021-06-05 00:40:30,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:30,449 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:30,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:30,463 INFO L225 Difference]: With dead ends: 15829 [2021-06-05 00:40:30,463 INFO L226 Difference]: Without dead ends: 15829 [2021-06-05 00:40:30,464 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1221.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:30,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15829 states. [2021-06-05 00:40:30,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15829 to 5994. [2021-06-05 00:40:30,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5994 states, 5992 states have (on average 2.6712283044058744) internal successors, (16006), 5993 states have internal predecessors, (16006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:30,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5994 states to 5994 states and 16006 transitions. [2021-06-05 00:40:30,564 INFO L78 Accepts]: Start accepts. Automaton has 5994 states and 16006 transitions. Word has length 114 [2021-06-05 00:40:30,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:30,564 INFO L482 AbstractCegarLoop]: Abstraction has 5994 states and 16006 transitions. [2021-06-05 00:40:30,564 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:30,564 INFO L276 IsEmpty]: Start isEmpty. Operand 5994 states and 16006 transitions. [2021-06-05 00:40:30,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:30,568 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:30,568 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:30,568 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2021-06-05 00:40:30,568 INFO L430 AbstractCegarLoop]: === Iteration 200 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:30,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:30,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1215224276, now seen corresponding path program 194 times [2021-06-05 00:40:30,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:30,569 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110310705] [2021-06-05 00:40:30,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:30,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:30,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:30,850 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:30,850 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110310705] [2021-06-05 00:40:30,850 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110310705] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:30,850 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:30,850 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:30,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385006339] [2021-06-05 00:40:30,850 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:30,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:30,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:30,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:30,851 INFO L87 Difference]: Start difference. First operand 5994 states and 16006 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:31,568 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:40:31,712 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:40:31,870 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:40:32,047 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:40:32,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:32,186 INFO L93 Difference]: Finished difference Result 15029 states and 39321 transitions. [2021-06-05 00:40:32,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:32,186 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:32,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:32,200 INFO L225 Difference]: With dead ends: 15029 [2021-06-05 00:40:32,201 INFO L226 Difference]: Without dead ends: 15029 [2021-06-05 00:40:32,201 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1223.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:32,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15029 states. [2021-06-05 00:40:32,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15029 to 6026. [2021-06-05 00:40:32,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6026 states, 6024 states have (on average 2.6723107569721116) internal successors, (16098), 6025 states have internal predecessors, (16098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:32,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6026 states to 6026 states and 16098 transitions. [2021-06-05 00:40:32,300 INFO L78 Accepts]: Start accepts. Automaton has 6026 states and 16098 transitions. Word has length 114 [2021-06-05 00:40:32,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:32,300 INFO L482 AbstractCegarLoop]: Abstraction has 6026 states and 16098 transitions. [2021-06-05 00:40:32,300 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:32,300 INFO L276 IsEmpty]: Start isEmpty. Operand 6026 states and 16098 transitions. [2021-06-05 00:40:32,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:32,304 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:32,304 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:32,304 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2021-06-05 00:40:32,304 INFO L430 AbstractCegarLoop]: === Iteration 201 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:32,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:32,305 INFO L82 PathProgramCache]: Analyzing trace with hash 920250346, now seen corresponding path program 195 times [2021-06-05 00:40:32,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:32,305 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136103579] [2021-06-05 00:40:32,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:32,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:32,589 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:32,589 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136103579] [2021-06-05 00:40:32,589 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136103579] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:32,589 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:32,589 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:32,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797692293] [2021-06-05 00:40:32,589 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:32,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:32,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:32,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:32,590 INFO L87 Difference]: Start difference. First operand 6026 states and 16098 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:33,310 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:40:33,458 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:40:33,635 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:40:33,812 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:40:33,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:33,987 INFO L93 Difference]: Finished difference Result 15875 states and 41181 transitions. [2021-06-05 00:40:33,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:33,987 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:33,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:33,998 INFO L225 Difference]: With dead ends: 15875 [2021-06-05 00:40:33,999 INFO L226 Difference]: Without dead ends: 15875 [2021-06-05 00:40:33,999 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1222.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:34,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15875 states. [2021-06-05 00:40:34,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15875 to 6010. [2021-06-05 00:40:34,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6010 states, 6008 states have (on average 2.6717709720372835) internal successors, (16052), 6009 states have internal predecessors, (16052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:34,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6010 states to 6010 states and 16052 transitions. [2021-06-05 00:40:34,099 INFO L78 Accepts]: Start accepts. Automaton has 6010 states and 16052 transitions. Word has length 114 [2021-06-05 00:40:34,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:34,099 INFO L482 AbstractCegarLoop]: Abstraction has 6010 states and 16052 transitions. [2021-06-05 00:40:34,099 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:34,099 INFO L276 IsEmpty]: Start isEmpty. Operand 6010 states and 16052 transitions. [2021-06-05 00:40:34,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:34,103 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:34,103 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:34,104 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2021-06-05 00:40:34,104 INFO L430 AbstractCegarLoop]: === Iteration 202 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:34,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:34,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1718113806, now seen corresponding path program 196 times [2021-06-05 00:40:34,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:34,104 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775230421] [2021-06-05 00:40:34,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:34,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:34,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:34,403 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:34,403 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775230421] [2021-06-05 00:40:34,403 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775230421] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:34,403 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:34,403 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:34,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687796119] [2021-06-05 00:40:34,403 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:34,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:34,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:34,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:34,404 INFO L87 Difference]: Start difference. First operand 6010 states and 16052 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:35,105 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:40:35,249 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:40:35,414 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:40:35,591 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:40:35,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:35,724 INFO L93 Difference]: Finished difference Result 15175 states and 39552 transitions. [2021-06-05 00:40:35,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:35,725 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:35,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:35,738 INFO L225 Difference]: With dead ends: 15175 [2021-06-05 00:40:35,738 INFO L226 Difference]: Without dead ends: 15175 [2021-06-05 00:40:35,738 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1234.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:35,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15175 states. [2021-06-05 00:40:35,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15175 to 6026. [2021-06-05 00:40:35,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6026 states, 6024 states have (on average 2.6723107569721116) internal successors, (16098), 6025 states have internal predecessors, (16098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:35,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6026 states to 6026 states and 16098 transitions. [2021-06-05 00:40:35,835 INFO L78 Accepts]: Start accepts. Automaton has 6026 states and 16098 transitions. Word has length 114 [2021-06-05 00:40:35,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:35,835 INFO L482 AbstractCegarLoop]: Abstraction has 6026 states and 16098 transitions. [2021-06-05 00:40:35,835 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:35,835 INFO L276 IsEmpty]: Start isEmpty. Operand 6026 states and 16098 transitions. [2021-06-05 00:40:35,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:35,839 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:35,839 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:35,839 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2021-06-05 00:40:35,839 INFO L430 AbstractCegarLoop]: === Iteration 203 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:35,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:35,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1469566826, now seen corresponding path program 197 times [2021-06-05 00:40:35,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:35,840 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791460587] [2021-06-05 00:40:35,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:35,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:36,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:36,121 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:36,121 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791460587] [2021-06-05 00:40:36,121 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791460587] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:36,121 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:36,121 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:36,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616157788] [2021-06-05 00:40:36,121 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:36,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:36,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:36,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:36,122 INFO L87 Difference]: Start difference. First operand 6026 states and 16098 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:36,857 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:40:37,005 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:40:37,162 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:40:37,339 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:40:37,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:37,476 INFO L93 Difference]: Finished difference Result 12433 states and 32640 transitions. [2021-06-05 00:40:37,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:37,477 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:37,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:37,489 INFO L225 Difference]: With dead ends: 12433 [2021-06-05 00:40:37,489 INFO L226 Difference]: Without dead ends: 12433 [2021-06-05 00:40:37,489 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1224.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:37,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12433 states. [2021-06-05 00:40:37,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12433 to 5962. [2021-06-05 00:40:37,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5962 states, 5960 states have (on average 2.6701342281879197) internal successors, (15914), 5961 states have internal predecessors, (15914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:37,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5962 states to 5962 states and 15914 transitions. [2021-06-05 00:40:37,583 INFO L78 Accepts]: Start accepts. Automaton has 5962 states and 15914 transitions. Word has length 114 [2021-06-05 00:40:37,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:37,583 INFO L482 AbstractCegarLoop]: Abstraction has 5962 states and 15914 transitions. [2021-06-05 00:40:37,583 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:37,583 INFO L276 IsEmpty]: Start isEmpty. Operand 5962 states and 15914 transitions. [2021-06-05 00:40:37,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:37,588 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:37,588 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:37,588 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2021-06-05 00:40:37,588 INFO L430 AbstractCegarLoop]: === Iteration 204 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:37,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:37,588 INFO L82 PathProgramCache]: Analyzing trace with hash 750081422, now seen corresponding path program 198 times [2021-06-05 00:40:37,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:37,588 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842516227] [2021-06-05 00:40:37,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:37,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:37,897 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:37,897 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842516227] [2021-06-05 00:40:37,897 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842516227] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:37,897 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:37,897 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:37,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281788560] [2021-06-05 00:40:37,897 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:37,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:37,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:37,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:37,898 INFO L87 Difference]: Start difference. First operand 5962 states and 15914 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:38,597 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:40:38,736 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:40:38,913 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:40:39,097 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:40:39,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:39,253 INFO L93 Difference]: Finished difference Result 17847 states and 46751 transitions. [2021-06-05 00:40:39,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:39,254 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:39,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:39,271 INFO L225 Difference]: With dead ends: 17847 [2021-06-05 00:40:39,271 INFO L226 Difference]: Without dead ends: 17847 [2021-06-05 00:40:39,271 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1226.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:39,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17847 states. [2021-06-05 00:40:39,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17847 to 6010. [2021-06-05 00:40:39,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6010 states, 6008 states have (on average 2.6717709720372835) internal successors, (16052), 6009 states have internal predecessors, (16052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:39,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6010 states to 6010 states and 16052 transitions. [2021-06-05 00:40:39,412 INFO L78 Accepts]: Start accepts. Automaton has 6010 states and 16052 transitions. Word has length 114 [2021-06-05 00:40:39,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:39,412 INFO L482 AbstractCegarLoop]: Abstraction has 6010 states and 16052 transitions. [2021-06-05 00:40:39,413 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:39,413 INFO L276 IsEmpty]: Start isEmpty. Operand 6010 states and 16052 transitions. [2021-06-05 00:40:39,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:39,417 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:39,417 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:39,417 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2021-06-05 00:40:39,417 INFO L430 AbstractCegarLoop]: === Iteration 205 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:39,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:39,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1631649138, now seen corresponding path program 199 times [2021-06-05 00:40:39,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:39,418 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170152584] [2021-06-05 00:40:39,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:39,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:39,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:39,725 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:39,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170152584] [2021-06-05 00:40:39,725 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170152584] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:39,725 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:39,725 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:39,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242544980] [2021-06-05 00:40:39,725 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:39,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:39,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:39,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:39,725 INFO L87 Difference]: Start difference. First operand 6010 states and 16052 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:40,435 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:40:40,603 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:40:40,769 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:40:40,951 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:40:41,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:41,115 INFO L93 Difference]: Finished difference Result 17923 states and 46887 transitions. [2021-06-05 00:40:41,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:41,115 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:41,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:41,131 INFO L225 Difference]: With dead ends: 17923 [2021-06-05 00:40:41,131 INFO L226 Difference]: Without dead ends: 17923 [2021-06-05 00:40:41,131 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1230.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:41,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17923 states. [2021-06-05 00:40:41,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17923 to 6026. [2021-06-05 00:40:41,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6026 states, 6024 states have (on average 2.6723107569721116) internal successors, (16098), 6025 states have internal predecessors, (16098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:41,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6026 states to 6026 states and 16098 transitions. [2021-06-05 00:40:41,242 INFO L78 Accepts]: Start accepts. Automaton has 6026 states and 16098 transitions. Word has length 114 [2021-06-05 00:40:41,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:41,242 INFO L482 AbstractCegarLoop]: Abstraction has 6026 states and 16098 transitions. [2021-06-05 00:40:41,242 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:41,242 INFO L276 IsEmpty]: Start isEmpty. Operand 6026 states and 16098 transitions. [2021-06-05 00:40:41,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:41,246 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:41,246 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:41,246 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2021-06-05 00:40:41,247 INFO L430 AbstractCegarLoop]: === Iteration 206 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:41,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:41,247 INFO L82 PathProgramCache]: Analyzing trace with hash 503825484, now seen corresponding path program 200 times [2021-06-05 00:40:41,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:41,247 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850518486] [2021-06-05 00:40:41,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:41,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:41,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:41,557 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:41,557 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850518486] [2021-06-05 00:40:41,557 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850518486] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:41,558 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:41,558 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:41,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170282924] [2021-06-05 00:40:41,558 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:41,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:41,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:41,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:41,558 INFO L87 Difference]: Start difference. First operand 6026 states and 16098 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:42,263 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:40:42,422 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:40:42,593 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:40:42,767 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:40:42,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:42,910 INFO L93 Difference]: Finished difference Result 17307 states and 44913 transitions. [2021-06-05 00:40:42,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:42,911 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:42,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:42,926 INFO L225 Difference]: With dead ends: 17307 [2021-06-05 00:40:42,926 INFO L226 Difference]: Without dead ends: 17307 [2021-06-05 00:40:42,926 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1249.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:42,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17307 states. [2021-06-05 00:40:43,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17307 to 5978. [2021-06-05 00:40:43,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5978 states, 5976 states have (on average 2.6706827309236947) internal successors, (15960), 5977 states have internal predecessors, (15960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:43,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5978 states to 5978 states and 15960 transitions. [2021-06-05 00:40:43,030 INFO L78 Accepts]: Start accepts. Automaton has 5978 states and 15960 transitions. Word has length 114 [2021-06-05 00:40:43,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:43,030 INFO L482 AbstractCegarLoop]: Abstraction has 5978 states and 15960 transitions. [2021-06-05 00:40:43,030 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:43,030 INFO L276 IsEmpty]: Start isEmpty. Operand 5978 states and 15960 transitions. [2021-06-05 00:40:43,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:43,034 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:43,034 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:43,034 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2021-06-05 00:40:43,034 INFO L430 AbstractCegarLoop]: === Iteration 207 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:43,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:43,034 INFO L82 PathProgramCache]: Analyzing trace with hash 371264108, now seen corresponding path program 201 times [2021-06-05 00:40:43,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:43,035 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554907559] [2021-06-05 00:40:43,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:43,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:43,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:43,344 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:43,345 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554907559] [2021-06-05 00:40:43,345 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554907559] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:43,345 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:43,345 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:43,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984123431] [2021-06-05 00:40:43,345 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:43,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:43,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:43,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:43,345 INFO L87 Difference]: Start difference. First operand 5978 states and 15960 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:44,191 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:40:44,383 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:40:44,568 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:40:44,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:44,703 INFO L93 Difference]: Finished difference Result 13715 states and 35814 transitions. [2021-06-05 00:40:44,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:44,703 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:44,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:44,715 INFO L225 Difference]: With dead ends: 13715 [2021-06-05 00:40:44,715 INFO L226 Difference]: Without dead ends: 13715 [2021-06-05 00:40:44,716 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1223.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:44,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13715 states. [2021-06-05 00:40:44,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13715 to 5946. [2021-06-05 00:40:44,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5946 states, 5944 states have (on average 2.6695827725437415) internal successors, (15868), 5945 states have internal predecessors, (15868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:44,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5946 states to 5946 states and 15868 transitions. [2021-06-05 00:40:44,818 INFO L78 Accepts]: Start accepts. Automaton has 5946 states and 15868 transitions. Word has length 114 [2021-06-05 00:40:44,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:44,818 INFO L482 AbstractCegarLoop]: Abstraction has 5946 states and 15868 transitions. [2021-06-05 00:40:44,819 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:44,819 INFO L276 IsEmpty]: Start isEmpty. Operand 5946 states and 15868 transitions. [2021-06-05 00:40:44,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:44,822 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:44,822 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:44,823 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2021-06-05 00:40:44,823 INFO L430 AbstractCegarLoop]: === Iteration 208 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:44,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:44,823 INFO L82 PathProgramCache]: Analyzing trace with hash 344179114, now seen corresponding path program 202 times [2021-06-05 00:40:44,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:44,823 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7254375] [2021-06-05 00:40:44,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:44,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:45,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:45,145 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:45,145 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7254375] [2021-06-05 00:40:45,145 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7254375] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:45,146 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:45,146 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:45,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745490891] [2021-06-05 00:40:45,146 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:45,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:45,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:45,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:45,146 INFO L87 Difference]: Start difference. First operand 5946 states and 15868 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:45,863 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:40:46,002 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:40:46,180 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:40:46,363 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:40:46,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:46,506 INFO L93 Difference]: Finished difference Result 12937 states and 34234 transitions. [2021-06-05 00:40:46,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:46,506 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:46,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:46,518 INFO L225 Difference]: With dead ends: 12937 [2021-06-05 00:40:46,518 INFO L226 Difference]: Without dead ends: 12937 [2021-06-05 00:40:46,519 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1236.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:46,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12937 states. [2021-06-05 00:40:46,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12937 to 5994. [2021-06-05 00:40:46,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5994 states, 5992 states have (on average 2.6712283044058744) internal successors, (16006), 5993 states have internal predecessors, (16006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:46,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5994 states to 5994 states and 16006 transitions. [2021-06-05 00:40:46,604 INFO L78 Accepts]: Start accepts. Automaton has 5994 states and 16006 transitions. Word has length 114 [2021-06-05 00:40:46,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:46,604 INFO L482 AbstractCegarLoop]: Abstraction has 5994 states and 16006 transitions. [2021-06-05 00:40:46,605 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:46,605 INFO L276 IsEmpty]: Start isEmpty. Operand 5994 states and 16006 transitions. [2021-06-05 00:40:46,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:46,609 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:46,609 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:46,609 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2021-06-05 00:40:46,609 INFO L430 AbstractCegarLoop]: === Iteration 209 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:46,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:46,609 INFO L82 PathProgramCache]: Analyzing trace with hash -2037551446, now seen corresponding path program 203 times [2021-06-05 00:40:46,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:46,609 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657172832] [2021-06-05 00:40:46,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:46,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:46,928 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:46,928 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657172832] [2021-06-05 00:40:46,928 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657172832] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:46,928 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:46,928 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:46,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118993912] [2021-06-05 00:40:46,928 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:46,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:46,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:46,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:46,929 INFO L87 Difference]: Start difference. First operand 5994 states and 16006 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:47,649 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:40:47,813 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:40:47,974 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:40:48,155 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:40:48,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:48,297 INFO L93 Difference]: Finished difference Result 13013 states and 34370 transitions. [2021-06-05 00:40:48,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:48,297 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:48,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:48,310 INFO L225 Difference]: With dead ends: 13013 [2021-06-05 00:40:48,310 INFO L226 Difference]: Without dead ends: 13013 [2021-06-05 00:40:48,310 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1250.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:48,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13013 states. [2021-06-05 00:40:48,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13013 to 6010. [2021-06-05 00:40:48,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6010 states, 6008 states have (on average 2.6717709720372835) internal successors, (16052), 6009 states have internal predecessors, (16052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:48,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6010 states to 6010 states and 16052 transitions. [2021-06-05 00:40:48,404 INFO L78 Accepts]: Start accepts. Automaton has 6010 states and 16052 transitions. Word has length 114 [2021-06-05 00:40:48,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:48,404 INFO L482 AbstractCegarLoop]: Abstraction has 6010 states and 16052 transitions. [2021-06-05 00:40:48,404 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:48,404 INFO L276 IsEmpty]: Start isEmpty. Operand 6010 states and 16052 transitions. [2021-06-05 00:40:48,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:48,409 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:48,409 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:48,409 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2021-06-05 00:40:48,409 INFO L430 AbstractCegarLoop]: === Iteration 210 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:48,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:48,409 INFO L82 PathProgramCache]: Analyzing trace with hash 97923176, now seen corresponding path program 204 times [2021-06-05 00:40:48,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:48,409 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945111727] [2021-06-05 00:40:48,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:48,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:48,736 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:48,737 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945111727] [2021-06-05 00:40:48,737 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945111727] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:48,737 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:48,737 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:48,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574916146] [2021-06-05 00:40:48,737 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:48,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:48,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:48,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:48,737 INFO L87 Difference]: Start difference. First operand 6010 states and 16052 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:49,448 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:40:49,611 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:40:49,786 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:40:49,962 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:40:50,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:50,102 INFO L93 Difference]: Finished difference Result 12397 states and 32396 transitions. [2021-06-05 00:40:50,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:50,102 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:50,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:50,113 INFO L225 Difference]: With dead ends: 12397 [2021-06-05 00:40:50,113 INFO L226 Difference]: Without dead ends: 12397 [2021-06-05 00:40:50,113 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1251.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:50,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12397 states. [2021-06-05 00:40:50,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12397 to 5962. [2021-06-05 00:40:50,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5962 states, 5960 states have (on average 2.6701342281879197) internal successors, (15914), 5961 states have internal predecessors, (15914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:50,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5962 states to 5962 states and 15914 transitions. [2021-06-05 00:40:50,214 INFO L78 Accepts]: Start accepts. Automaton has 5962 states and 15914 transitions. Word has length 114 [2021-06-05 00:40:50,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:50,214 INFO L482 AbstractCegarLoop]: Abstraction has 5962 states and 15914 transitions. [2021-06-05 00:40:50,214 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:50,215 INFO L276 IsEmpty]: Start isEmpty. Operand 5962 states and 15914 transitions. [2021-06-05 00:40:50,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:50,219 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:50,219 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:50,219 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2021-06-05 00:40:50,219 INFO L430 AbstractCegarLoop]: === Iteration 211 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:50,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:50,219 INFO L82 PathProgramCache]: Analyzing trace with hash -34638200, now seen corresponding path program 205 times [2021-06-05 00:40:50,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:50,219 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667129496] [2021-06-05 00:40:50,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:50,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:50,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:50,542 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:50,542 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667129496] [2021-06-05 00:40:50,542 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667129496] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:50,542 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:50,542 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:50,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818252200] [2021-06-05 00:40:50,543 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:50,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:50,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:50,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:50,543 INFO L87 Difference]: Start difference. First operand 5962 states and 15914 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:51,380 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:40:51,561 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:40:51,744 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:40:51,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:51,872 INFO L93 Difference]: Finished difference Result 12465 states and 32702 transitions. [2021-06-05 00:40:51,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:51,872 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:51,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:51,882 INFO L225 Difference]: With dead ends: 12465 [2021-06-05 00:40:51,883 INFO L226 Difference]: Without dead ends: 12465 [2021-06-05 00:40:51,883 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1216.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:51,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12465 states. [2021-06-05 00:40:51,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12465 to 5946. [2021-06-05 00:40:51,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5946 states, 5944 states have (on average 2.6695827725437415) internal successors, (15868), 5945 states have internal predecessors, (15868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:51,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5946 states to 5946 states and 15868 transitions. [2021-06-05 00:40:51,964 INFO L78 Accepts]: Start accepts. Automaton has 5946 states and 15868 transitions. Word has length 114 [2021-06-05 00:40:51,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:51,964 INFO L482 AbstractCegarLoop]: Abstraction has 5946 states and 15868 transitions. [2021-06-05 00:40:51,964 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:51,964 INFO L276 IsEmpty]: Start isEmpty. Operand 5946 states and 15868 transitions. [2021-06-05 00:40:51,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:51,968 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:51,968 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:51,968 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2021-06-05 00:40:51,968 INFO L430 AbstractCegarLoop]: === Iteration 212 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:51,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:51,968 INFO L82 PathProgramCache]: Analyzing trace with hash 305606158, now seen corresponding path program 206 times [2021-06-05 00:40:51,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:51,968 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830269070] [2021-06-05 00:40:51,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:51,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:52,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:52,314 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:52,314 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830269070] [2021-06-05 00:40:52,314 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830269070] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:52,314 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:52,314 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:52,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332393206] [2021-06-05 00:40:52,314 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:52,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:52,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:52,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:52,315 INFO L87 Difference]: Start difference. First operand 5946 states and 15868 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:53,161 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:40:53,339 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:40:53,519 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:40:53,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:53,649 INFO L93 Difference]: Finished difference Result 9091 states and 23978 transitions. [2021-06-05 00:40:53,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:53,649 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:53,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:53,656 INFO L225 Difference]: With dead ends: 9091 [2021-06-05 00:40:53,656 INFO L226 Difference]: Without dead ends: 9091 [2021-06-05 00:40:53,656 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1251.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:53,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9091 states. [2021-06-05 00:40:53,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9091 to 5798. [2021-06-05 00:40:53,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5798 states, 5796 states have (on average 2.663906142167012) internal successors, (15440), 5797 states have internal predecessors, (15440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:53,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5798 states to 5798 states and 15440 transitions. [2021-06-05 00:40:53,723 INFO L78 Accepts]: Start accepts. Automaton has 5798 states and 15440 transitions. Word has length 114 [2021-06-05 00:40:53,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:53,723 INFO L482 AbstractCegarLoop]: Abstraction has 5798 states and 15440 transitions. [2021-06-05 00:40:53,723 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:53,723 INFO L276 IsEmpty]: Start isEmpty. Operand 5798 states and 15440 transitions. [2021-06-05 00:40:53,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:53,727 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:53,727 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:53,728 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2021-06-05 00:40:53,728 INFO L430 AbstractCegarLoop]: === Iteration 213 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:53,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:53,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1879688244, now seen corresponding path program 207 times [2021-06-05 00:40:53,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:53,728 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106509269] [2021-06-05 00:40:53,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:53,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:54,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:54,031 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:54,031 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106509269] [2021-06-05 00:40:54,031 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106509269] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:54,031 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:54,031 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:54,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795733599] [2021-06-05 00:40:54,031 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:54,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:54,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:54,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:54,031 INFO L87 Difference]: Start difference. First operand 5798 states and 15440 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:54,754 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:40:54,897 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:40:55,076 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:40:55,258 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:40:55,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:55,422 INFO L93 Difference]: Finished difference Result 20011 states and 52272 transitions. [2021-06-05 00:40:55,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:55,422 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:55,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:55,439 INFO L225 Difference]: With dead ends: 20011 [2021-06-05 00:40:55,440 INFO L226 Difference]: Without dead ends: 20011 [2021-06-05 00:40:55,440 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1216.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:55,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20011 states. [2021-06-05 00:40:55,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20011 to 5926. [2021-06-05 00:40:55,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5926 states, 5924 states have (on average 2.6684672518568533) internal successors, (15808), 5925 states have internal predecessors, (15808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:55,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 15808 transitions. [2021-06-05 00:40:55,557 INFO L78 Accepts]: Start accepts. Automaton has 5926 states and 15808 transitions. Word has length 114 [2021-06-05 00:40:55,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:55,557 INFO L482 AbstractCegarLoop]: Abstraction has 5926 states and 15808 transitions. [2021-06-05 00:40:55,557 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:55,557 INFO L276 IsEmpty]: Start isEmpty. Operand 5926 states and 15808 transitions. [2021-06-05 00:40:55,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:55,561 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:55,561 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:55,562 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2021-06-05 00:40:55,562 INFO L430 AbstractCegarLoop]: === Iteration 214 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:55,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:55,562 INFO L82 PathProgramCache]: Analyzing trace with hash 33548492, now seen corresponding path program 208 times [2021-06-05 00:40:55,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:55,562 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356674358] [2021-06-05 00:40:55,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:55,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:55,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:55,880 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:55,880 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356674358] [2021-06-05 00:40:55,880 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356674358] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:55,880 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:55,880 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:55,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203279038] [2021-06-05 00:40:55,881 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:55,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:55,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:55,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:55,881 INFO L87 Difference]: Start difference. First operand 5926 states and 15808 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:56,585 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:40:56,744 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:40:56,902 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:40:57,081 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:40:57,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:57,238 INFO L93 Difference]: Finished difference Result 22635 states and 58995 transitions. [2021-06-05 00:40:57,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:57,239 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:57,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:57,260 INFO L225 Difference]: With dead ends: 22635 [2021-06-05 00:40:57,260 INFO L226 Difference]: Without dead ends: 22635 [2021-06-05 00:40:57,260 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1215.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:57,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22635 states. [2021-06-05 00:40:57,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22635 to 5942. [2021-06-05 00:40:57,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5942 states, 5940 states have (on average 2.669023569023569) internal successors, (15854), 5941 states have internal predecessors, (15854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:57,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5942 states to 5942 states and 15854 transitions. [2021-06-05 00:40:57,394 INFO L78 Accepts]: Start accepts. Automaton has 5942 states and 15854 transitions. Word has length 114 [2021-06-05 00:40:57,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:57,394 INFO L482 AbstractCegarLoop]: Abstraction has 5942 states and 15854 transitions. [2021-06-05 00:40:57,394 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:57,394 INFO L276 IsEmpty]: Start isEmpty. Operand 5942 states and 15854 transitions. [2021-06-05 00:40:57,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:57,398 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:57,398 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:57,398 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2021-06-05 00:40:57,398 INFO L430 AbstractCegarLoop]: === Iteration 215 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:57,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:57,399 INFO L82 PathProgramCache]: Analyzing trace with hash -2125944182, now seen corresponding path program 209 times [2021-06-05 00:40:57,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:57,399 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314324738] [2021-06-05 00:40:57,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:57,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:57,696 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:57,696 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314324738] [2021-06-05 00:40:57,696 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314324738] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:57,696 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:57,697 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:57,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476461677] [2021-06-05 00:40:57,697 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:57,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:57,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:57,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:57,697 INFO L87 Difference]: Start difference. First operand 5942 states and 15854 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:58,408 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:40:58,567 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:40:58,736 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:40:58,913 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:40:59,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:59,060 INFO L93 Difference]: Finished difference Result 20915 states and 54283 transitions. [2021-06-05 00:40:59,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:40:59,061 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:40:59,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:59,078 INFO L225 Difference]: With dead ends: 20915 [2021-06-05 00:40:59,079 INFO L226 Difference]: Without dead ends: 20915 [2021-06-05 00:40:59,079 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1239.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:40:59,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20915 states. [2021-06-05 00:40:59,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20915 to 5894. [2021-06-05 00:40:59,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5894 states, 5892 states have (on average 2.6673455532926003) internal successors, (15716), 5893 states have internal predecessors, (15716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:59,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5894 states to 5894 states and 15716 transitions. [2021-06-05 00:40:59,198 INFO L78 Accepts]: Start accepts. Automaton has 5894 states and 15716 transitions. Word has length 114 [2021-06-05 00:40:59,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:59,198 INFO L482 AbstractCegarLoop]: Abstraction has 5894 states and 15716 transitions. [2021-06-05 00:40:59,198 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:59,198 INFO L276 IsEmpty]: Start isEmpty. Operand 5894 states and 15716 transitions. [2021-06-05 00:40:59,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:40:59,202 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:59,202 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:59,202 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2021-06-05 00:40:59,202 INFO L430 AbstractCegarLoop]: === Iteration 216 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:59,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:59,202 INFO L82 PathProgramCache]: Analyzing trace with hash 355295116, now seen corresponding path program 210 times [2021-06-05 00:40:59,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:59,202 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867496217] [2021-06-05 00:40:59,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:59,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:59,481 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:59,481 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867496217] [2021-06-05 00:40:59,481 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867496217] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:59,481 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:59,481 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:40:59,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406206291] [2021-06-05 00:40:59,482 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:40:59,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:59,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:40:59,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:40:59,482 INFO L87 Difference]: Start difference. First operand 5894 states and 15716 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:00,211 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:41:00,357 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:00,518 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:41:00,695 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:41:00,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:00,854 INFO L93 Difference]: Finished difference Result 20115 states and 52430 transitions. [2021-06-05 00:41:00,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:00,854 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:00,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:00,872 INFO L225 Difference]: With dead ends: 20115 [2021-06-05 00:41:00,872 INFO L226 Difference]: Without dead ends: 20115 [2021-06-05 00:41:00,872 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1196.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:00,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20115 states. [2021-06-05 00:41:00,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20115 to 5926. [2021-06-05 00:41:00,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5926 states, 5924 states have (on average 2.6684672518568533) internal successors, (15808), 5925 states have internal predecessors, (15808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:01,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 15808 transitions. [2021-06-05 00:41:01,006 INFO L78 Accepts]: Start accepts. Automaton has 5926 states and 15808 transitions. Word has length 114 [2021-06-05 00:41:01,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:01,006 INFO L482 AbstractCegarLoop]: Abstraction has 5926 states and 15808 transitions. [2021-06-05 00:41:01,006 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:01,006 INFO L276 IsEmpty]: Start isEmpty. Operand 5926 states and 15808 transitions. [2021-06-05 00:41:01,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:01,010 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:01,010 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:01,010 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2021-06-05 00:41:01,010 INFO L430 AbstractCegarLoop]: === Iteration 217 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:01,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:01,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1804197558, now seen corresponding path program 211 times [2021-06-05 00:41:01,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:01,011 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680140605] [2021-06-05 00:41:01,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:01,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:01,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:01,298 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:01,298 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680140605] [2021-06-05 00:41:01,298 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680140605] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:01,298 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:01,299 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:01,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71539872] [2021-06-05 00:41:01,299 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:01,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:01,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:01,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:01,299 INFO L87 Difference]: Start difference. First operand 5926 states and 15808 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:02,034 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:41:02,181 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:02,357 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:41:02,533 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:41:02,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:02,702 INFO L93 Difference]: Finished difference Result 20961 states and 54290 transitions. [2021-06-05 00:41:02,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:02,702 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:02,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:02,721 INFO L225 Difference]: With dead ends: 20961 [2021-06-05 00:41:02,721 INFO L226 Difference]: Without dead ends: 20961 [2021-06-05 00:41:02,721 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1216.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:02,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20961 states. [2021-06-05 00:41:02,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20961 to 5910. [2021-06-05 00:41:02,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5908 states have (on average 2.6679079214624237) internal successors, (15762), 5909 states have internal predecessors, (15762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:02,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 15762 transitions. [2021-06-05 00:41:02,850 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 15762 transitions. Word has length 114 [2021-06-05 00:41:02,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:02,850 INFO L482 AbstractCegarLoop]: Abstraction has 5910 states and 15762 transitions. [2021-06-05 00:41:02,850 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:02,850 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 15762 transitions. [2021-06-05 00:41:02,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:02,855 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:02,855 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:02,855 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2021-06-05 00:41:02,855 INFO L430 AbstractCegarLoop]: === Iteration 218 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:02,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:02,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1006334098, now seen corresponding path program 212 times [2021-06-05 00:41:02,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:02,855 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771744889] [2021-06-05 00:41:02,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:03,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:03,141 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:03,141 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771744889] [2021-06-05 00:41:03,141 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771744889] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:03,141 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:03,141 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:03,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962717486] [2021-06-05 00:41:03,142 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:03,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:03,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:03,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:03,142 INFO L87 Difference]: Start difference. First operand 5910 states and 15762 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:03,861 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:41:04,005 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:04,172 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:41:04,348 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:41:04,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:04,490 INFO L93 Difference]: Finished difference Result 20261 states and 52661 transitions. [2021-06-05 00:41:04,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:04,491 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:04,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:04,510 INFO L225 Difference]: With dead ends: 20261 [2021-06-05 00:41:04,510 INFO L226 Difference]: Without dead ends: 20261 [2021-06-05 00:41:04,510 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1215.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:04,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20261 states. [2021-06-05 00:41:04,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20261 to 5926. [2021-06-05 00:41:04,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5926 states, 5924 states have (on average 2.6684672518568533) internal successors, (15808), 5925 states have internal predecessors, (15808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:04,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 15808 transitions. [2021-06-05 00:41:04,632 INFO L78 Accepts]: Start accepts. Automaton has 5926 states and 15808 transitions. Word has length 114 [2021-06-05 00:41:04,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:04,632 INFO L482 AbstractCegarLoop]: Abstraction has 5926 states and 15808 transitions. [2021-06-05 00:41:04,632 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:04,632 INFO L276 IsEmpty]: Start isEmpty. Operand 5926 states and 15808 transitions. [2021-06-05 00:41:04,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:04,636 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:04,636 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:04,636 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2021-06-05 00:41:04,637 INFO L430 AbstractCegarLoop]: === Iteration 219 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:04,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:04,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1254881078, now seen corresponding path program 213 times [2021-06-05 00:41:04,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:04,637 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309435015] [2021-06-05 00:41:04,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:04,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:04,927 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:04,927 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309435015] [2021-06-05 00:41:04,927 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309435015] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:04,927 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:04,927 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:04,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026064205] [2021-06-05 00:41:04,927 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:04,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:04,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:04,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:04,928 INFO L87 Difference]: Start difference. First operand 5926 states and 15808 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:05,651 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:41:05,800 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:05,960 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:41:06,150 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:41:06,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:06,299 INFO L93 Difference]: Finished difference Result 17519 states and 45749 transitions. [2021-06-05 00:41:06,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:06,300 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:06,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:06,315 INFO L225 Difference]: With dead ends: 17519 [2021-06-05 00:41:06,315 INFO L226 Difference]: Without dead ends: 17519 [2021-06-05 00:41:06,315 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1213.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:06,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17519 states. [2021-06-05 00:41:06,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17519 to 5862. [2021-06-05 00:41:06,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5862 states, 5860 states have (on average 2.666211604095563) internal successors, (15624), 5861 states have internal predecessors, (15624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:06,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5862 states to 5862 states and 15624 transitions. [2021-06-05 00:41:06,434 INFO L78 Accepts]: Start accepts. Automaton has 5862 states and 15624 transitions. Word has length 114 [2021-06-05 00:41:06,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:06,435 INFO L482 AbstractCegarLoop]: Abstraction has 5862 states and 15624 transitions. [2021-06-05 00:41:06,435 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:06,435 INFO L276 IsEmpty]: Start isEmpty. Operand 5862 states and 15624 transitions. [2021-06-05 00:41:06,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:06,439 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:06,439 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:06,439 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2021-06-05 00:41:06,439 INFO L430 AbstractCegarLoop]: === Iteration 220 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:06,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:06,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1974366482, now seen corresponding path program 214 times [2021-06-05 00:41:06,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:06,439 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435047744] [2021-06-05 00:41:06,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:06,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:06,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:06,752 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:06,752 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435047744] [2021-06-05 00:41:06,752 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435047744] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:06,752 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:06,752 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:06,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265218942] [2021-06-05 00:41:06,753 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:06,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:06,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:06,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:06,753 INFO L87 Difference]: Start difference. First operand 5862 states and 15624 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:07,479 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:41:07,620 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:41:07,802 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:41:07,983 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:41:08,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:08,144 INFO L93 Difference]: Finished difference Result 18711 states and 49141 transitions. [2021-06-05 00:41:08,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:08,144 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:08,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:08,161 INFO L225 Difference]: With dead ends: 18711 [2021-06-05 00:41:08,162 INFO L226 Difference]: Without dead ends: 18711 [2021-06-05 00:41:08,162 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1222.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:08,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18711 states. [2021-06-05 00:41:08,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18711 to 5910. [2021-06-05 00:41:08,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5908 states have (on average 2.6679079214624237) internal successors, (15762), 5909 states have internal predecessors, (15762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:08,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 15762 transitions. [2021-06-05 00:41:08,273 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 15762 transitions. Word has length 114 [2021-06-05 00:41:08,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:08,273 INFO L482 AbstractCegarLoop]: Abstraction has 5910 states and 15762 transitions. [2021-06-05 00:41:08,273 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:08,273 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 15762 transitions. [2021-06-05 00:41:08,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:08,277 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:08,277 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:08,277 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2021-06-05 00:41:08,277 INFO L430 AbstractCegarLoop]: === Iteration 221 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:08,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:08,278 INFO L82 PathProgramCache]: Analyzing trace with hash -61129746, now seen corresponding path program 215 times [2021-06-05 00:41:08,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:08,278 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502642248] [2021-06-05 00:41:08,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:08,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:08,580 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:08,580 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502642248] [2021-06-05 00:41:08,580 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502642248] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:08,580 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:08,580 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:08,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885978362] [2021-06-05 00:41:08,580 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:08,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:08,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:08,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:08,581 INFO L87 Difference]: Start difference. First operand 5910 states and 15762 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:09,302 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:41:09,464 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:09,625 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:41:09,804 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:41:09,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:09,954 INFO L93 Difference]: Finished difference Result 18787 states and 49277 transitions. [2021-06-05 00:41:09,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:09,955 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:09,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:09,971 INFO L225 Difference]: With dead ends: 18787 [2021-06-05 00:41:09,971 INFO L226 Difference]: Without dead ends: 18787 [2021-06-05 00:41:09,971 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1236.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:09,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18787 states. [2021-06-05 00:41:10,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18787 to 5926. [2021-06-05 00:41:10,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5926 states, 5924 states have (on average 2.6684672518568533) internal successors, (15808), 5925 states have internal predecessors, (15808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:10,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 15808 transitions. [2021-06-05 00:41:10,084 INFO L78 Accepts]: Start accepts. Automaton has 5926 states and 15808 transitions. Word has length 114 [2021-06-05 00:41:10,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:10,084 INFO L482 AbstractCegarLoop]: Abstraction has 5926 states and 15808 transitions. [2021-06-05 00:41:10,084 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:10,084 INFO L276 IsEmpty]: Start isEmpty. Operand 5926 states and 15808 transitions. [2021-06-05 00:41:10,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:10,088 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:10,088 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:10,089 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2021-06-05 00:41:10,089 INFO L430 AbstractCegarLoop]: === Iteration 222 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:10,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:10,089 INFO L82 PathProgramCache]: Analyzing trace with hash 2074344876, now seen corresponding path program 216 times [2021-06-05 00:41:10,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:10,089 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160803233] [2021-06-05 00:41:10,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:10,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:10,400 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:10,400 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160803233] [2021-06-05 00:41:10,400 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160803233] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:10,400 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:10,400 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:10,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613239832] [2021-06-05 00:41:10,400 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:10,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:10,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:10,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:10,400 INFO L87 Difference]: Start difference. First operand 5926 states and 15808 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:11,099 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:41:11,260 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:11,434 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:41:11,606 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:41:11,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:11,748 INFO L93 Difference]: Finished difference Result 18171 states and 47303 transitions. [2021-06-05 00:41:11,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:11,748 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:11,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:11,764 INFO L225 Difference]: With dead ends: 18171 [2021-06-05 00:41:11,764 INFO L226 Difference]: Without dead ends: 18171 [2021-06-05 00:41:11,764 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1234.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:11,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18171 states. [2021-06-05 00:41:11,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18171 to 5878. [2021-06-05 00:41:11,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5878 states, 5876 states have (on average 2.666780122532335) internal successors, (15670), 5877 states have internal predecessors, (15670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:11,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 15670 transitions. [2021-06-05 00:41:11,878 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 15670 transitions. Word has length 114 [2021-06-05 00:41:11,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:11,878 INFO L482 AbstractCegarLoop]: Abstraction has 5878 states and 15670 transitions. [2021-06-05 00:41:11,878 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:11,878 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 15670 transitions. [2021-06-05 00:41:11,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:11,882 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:11,882 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:11,882 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2021-06-05 00:41:11,882 INFO L430 AbstractCegarLoop]: === Iteration 223 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:11,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:11,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1941783500, now seen corresponding path program 217 times [2021-06-05 00:41:11,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:11,882 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400206207] [2021-06-05 00:41:11,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:11,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:12,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:12,199 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:12,199 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400206207] [2021-06-05 00:41:12,199 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400206207] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:12,199 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:12,200 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:12,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319614995] [2021-06-05 00:41:12,200 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:12,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:12,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:12,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:12,200 INFO L87 Difference]: Start difference. First operand 5878 states and 15670 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:13,055 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:41:13,239 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:41:13,432 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:41:13,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:13,580 INFO L93 Difference]: Finished difference Result 14931 states and 39056 transitions. [2021-06-05 00:41:13,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:13,581 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:13,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:13,593 INFO L225 Difference]: With dead ends: 14931 [2021-06-05 00:41:13,593 INFO L226 Difference]: Without dead ends: 14931 [2021-06-05 00:41:13,594 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1232.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:13,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14931 states. [2021-06-05 00:41:13,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14931 to 5846. [2021-06-05 00:41:13,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5846 states, 5844 states have (on average 2.6656399726214923) internal successors, (15578), 5845 states have internal predecessors, (15578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:13,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5846 states to 5846 states and 15578 transitions. [2021-06-05 00:41:13,692 INFO L78 Accepts]: Start accepts. Automaton has 5846 states and 15578 transitions. Word has length 114 [2021-06-05 00:41:13,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:13,692 INFO L482 AbstractCegarLoop]: Abstraction has 5846 states and 15578 transitions. [2021-06-05 00:41:13,692 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:13,692 INFO L276 IsEmpty]: Start isEmpty. Operand 5846 states and 15578 transitions. [2021-06-05 00:41:13,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:13,697 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:13,697 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:13,697 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2021-06-05 00:41:13,697 INFO L430 AbstractCegarLoop]: === Iteration 224 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:13,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:13,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1041667604, now seen corresponding path program 218 times [2021-06-05 00:41:13,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:13,697 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976692726] [2021-06-05 00:41:13,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:13,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:13,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:13,998 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:13,998 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976692726] [2021-06-05 00:41:13,998 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976692726] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:13,998 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:13,998 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:13,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664556606] [2021-06-05 00:41:13,998 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:13,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:13,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:13,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:13,999 INFO L87 Difference]: Start difference. First operand 5846 states and 15578 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:14,723 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:41:14,859 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:41:15,033 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:41:15,213 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:41:15,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:15,370 INFO L93 Difference]: Finished difference Result 19431 states and 50548 transitions. [2021-06-05 00:41:15,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:15,370 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:15,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:15,388 INFO L225 Difference]: With dead ends: 19431 [2021-06-05 00:41:15,388 INFO L226 Difference]: Without dead ends: 19431 [2021-06-05 00:41:15,388 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1225.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:15,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19431 states. [2021-06-05 00:41:15,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19431 to 5974. [2021-06-05 00:41:15,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5974 states, 5972 states have (on average 2.6701272605492297) internal successors, (15946), 5973 states have internal predecessors, (15946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:15,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 15946 transitions. [2021-06-05 00:41:15,503 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 15946 transitions. Word has length 114 [2021-06-05 00:41:15,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:15,504 INFO L482 AbstractCegarLoop]: Abstraction has 5974 states and 15946 transitions. [2021-06-05 00:41:15,504 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:15,504 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 15946 transitions. [2021-06-05 00:41:15,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:15,508 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:15,508 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:15,508 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2021-06-05 00:41:15,508 INFO L430 AbstractCegarLoop]: === Iteration 225 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:15,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:15,508 INFO L82 PathProgramCache]: Analyzing trace with hash 871569132, now seen corresponding path program 219 times [2021-06-05 00:41:15,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:15,508 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63988176] [2021-06-05 00:41:15,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:15,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:15,802 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:15,802 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63988176] [2021-06-05 00:41:15,802 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63988176] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:15,802 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:15,802 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:15,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492653583] [2021-06-05 00:41:15,802 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:15,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:15,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:15,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:15,803 INFO L87 Difference]: Start difference. First operand 5974 states and 15946 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:16,539 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:41:16,703 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:16,865 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:41:17,050 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:41:17,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:17,244 INFO L93 Difference]: Finished difference Result 22055 states and 57271 transitions. [2021-06-05 00:41:17,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:17,245 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:17,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:17,260 INFO L225 Difference]: With dead ends: 22055 [2021-06-05 00:41:17,260 INFO L226 Difference]: Without dead ends: 22055 [2021-06-05 00:41:17,260 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1216.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:17,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22055 states. [2021-06-05 00:41:17,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22055 to 5990. [2021-06-05 00:41:17,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5990 states, 5988 states have (on average 2.670674682698731) internal successors, (15992), 5989 states have internal predecessors, (15992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:17,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5990 states to 5990 states and 15992 transitions. [2021-06-05 00:41:17,372 INFO L78 Accepts]: Start accepts. Automaton has 5990 states and 15992 transitions. Word has length 114 [2021-06-05 00:41:17,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:17,372 INFO L482 AbstractCegarLoop]: Abstraction has 5990 states and 15992 transitions. [2021-06-05 00:41:17,372 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:17,372 INFO L276 IsEmpty]: Start isEmpty. Operand 5990 states and 15992 transitions. [2021-06-05 00:41:17,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:17,376 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:17,376 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:17,376 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2021-06-05 00:41:17,376 INFO L430 AbstractCegarLoop]: === Iteration 226 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:17,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:17,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1287923542, now seen corresponding path program 220 times [2021-06-05 00:41:17,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:17,377 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870483357] [2021-06-05 00:41:17,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:17,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:17,671 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:17,671 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870483357] [2021-06-05 00:41:17,672 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870483357] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:17,672 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:17,672 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:17,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177887787] [2021-06-05 00:41:17,672 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:17,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:17,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:17,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:17,672 INFO L87 Difference]: Start difference. First operand 5990 states and 15992 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:18,404 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:41:18,569 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:18,744 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:41:18,926 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:41:19,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:19,090 INFO L93 Difference]: Finished difference Result 20335 states and 52559 transitions. [2021-06-05 00:41:19,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:19,090 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:19,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:19,108 INFO L225 Difference]: With dead ends: 20335 [2021-06-05 00:41:19,108 INFO L226 Difference]: Without dead ends: 20335 [2021-06-05 00:41:19,109 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1225.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:19,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20335 states. [2021-06-05 00:41:19,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20335 to 5942. [2021-06-05 00:41:19,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5942 states, 5940 states have (on average 2.669023569023569) internal successors, (15854), 5941 states have internal predecessors, (15854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:19,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5942 states to 5942 states and 15854 transitions. [2021-06-05 00:41:19,226 INFO L78 Accepts]: Start accepts. Automaton has 5942 states and 15854 transitions. Word has length 114 [2021-06-05 00:41:19,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:19,226 INFO L482 AbstractCegarLoop]: Abstraction has 5942 states and 15854 transitions. [2021-06-05 00:41:19,226 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:19,226 INFO L276 IsEmpty]: Start isEmpty. Operand 5942 states and 15854 transitions. [2021-06-05 00:41:19,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:19,230 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:19,230 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:19,230 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2021-06-05 00:41:19,230 INFO L430 AbstractCegarLoop]: === Iteration 227 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:19,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:19,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1193315756, now seen corresponding path program 221 times [2021-06-05 00:41:19,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:19,231 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078731182] [2021-06-05 00:41:19,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:19,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:19,510 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:19,510 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078731182] [2021-06-05 00:41:19,510 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078731182] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:19,510 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:19,510 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:19,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059410368] [2021-06-05 00:41:19,511 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:19,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:19,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:19,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:19,511 INFO L87 Difference]: Start difference. First operand 5942 states and 15854 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:20,256 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:41:20,404 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:20,568 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:41:20,748 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:41:20,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:20,921 INFO L93 Difference]: Finished difference Result 23411 states and 60488 transitions. [2021-06-05 00:41:20,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:20,921 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:20,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:20,942 INFO L225 Difference]: With dead ends: 23411 [2021-06-05 00:41:20,942 INFO L226 Difference]: Without dead ends: 23411 [2021-06-05 00:41:20,942 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1211.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:20,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23411 states. [2021-06-05 00:41:21,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23411 to 5974. [2021-06-05 00:41:21,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5974 states, 5972 states have (on average 2.6701272605492297) internal successors, (15946), 5973 states have internal predecessors, (15946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:21,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 15946 transitions. [2021-06-05 00:41:21,073 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 15946 transitions. Word has length 114 [2021-06-05 00:41:21,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:21,073 INFO L482 AbstractCegarLoop]: Abstraction has 5974 states and 15946 transitions. [2021-06-05 00:41:21,073 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:21,073 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 15946 transitions. [2021-06-05 00:41:21,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:21,078 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:21,078 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:21,078 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2021-06-05 00:41:21,078 INFO L430 AbstractCegarLoop]: === Iteration 228 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:21,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:21,078 INFO L82 PathProgramCache]: Analyzing trace with hash -966176918, now seen corresponding path program 222 times [2021-06-05 00:41:21,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:21,078 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113663245] [2021-06-05 00:41:21,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:21,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:21,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:21,362 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:21,362 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113663245] [2021-06-05 00:41:21,362 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113663245] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:21,362 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:21,362 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:21,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498630897] [2021-06-05 00:41:21,362 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:21,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:21,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:21,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:21,362 INFO L87 Difference]: Start difference. First operand 5974 states and 15946 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:22,095 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:41:22,242 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:22,420 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:41:22,614 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:41:22,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:22,793 INFO L93 Difference]: Finished difference Result 24257 states and 62348 transitions. [2021-06-05 00:41:22,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:22,793 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:22,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:22,813 INFO L225 Difference]: With dead ends: 24257 [2021-06-05 00:41:22,813 INFO L226 Difference]: Without dead ends: 24257 [2021-06-05 00:41:22,814 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1226.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:22,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24257 states. [2021-06-05 00:41:22,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24257 to 5958. [2021-06-05 00:41:22,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5958 states, 5956 states have (on average 2.669576897246474) internal successors, (15900), 5957 states have internal predecessors, (15900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:22,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5958 states to 5958 states and 15900 transitions. [2021-06-05 00:41:22,948 INFO L78 Accepts]: Start accepts. Automaton has 5958 states and 15900 transitions. Word has length 114 [2021-06-05 00:41:22,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:22,948 INFO L482 AbstractCegarLoop]: Abstraction has 5958 states and 15900 transitions. [2021-06-05 00:41:22,948 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:22,948 INFO L276 IsEmpty]: Start isEmpty. Operand 5958 states and 15900 transitions. [2021-06-05 00:41:22,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:22,953 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:22,953 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:22,953 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2021-06-05 00:41:22,953 INFO L430 AbstractCegarLoop]: === Iteration 229 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:22,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:22,953 INFO L82 PathProgramCache]: Analyzing trace with hash -168313458, now seen corresponding path program 223 times [2021-06-05 00:41:22,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:22,953 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424487802] [2021-06-05 00:41:22,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:23,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:23,237 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:23,238 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424487802] [2021-06-05 00:41:23,238 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424487802] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:23,238 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:23,238 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:23,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454887123] [2021-06-05 00:41:23,238 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:23,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:23,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:23,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:23,238 INFO L87 Difference]: Start difference. First operand 5958 states and 15900 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:23,967 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:41:24,116 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:24,288 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:41:24,468 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:41:24,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:24,644 INFO L93 Difference]: Finished difference Result 23557 states and 60719 transitions. [2021-06-05 00:41:24,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:24,645 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:24,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:24,666 INFO L225 Difference]: With dead ends: 23557 [2021-06-05 00:41:24,666 INFO L226 Difference]: Without dead ends: 23557 [2021-06-05 00:41:24,666 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1211.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:24,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23557 states. [2021-06-05 00:41:24,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23557 to 5974. [2021-06-05 00:41:24,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5974 states, 5972 states have (on average 2.6701272605492297) internal successors, (15946), 5973 states have internal predecessors, (15946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:24,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 15946 transitions. [2021-06-05 00:41:24,803 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 15946 transitions. Word has length 114 [2021-06-05 00:41:24,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:24,803 INFO L482 AbstractCegarLoop]: Abstraction has 5974 states and 15946 transitions. [2021-06-05 00:41:24,803 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:24,803 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 15946 transitions. [2021-06-05 00:41:24,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:24,807 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:24,807 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:24,807 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2021-06-05 00:41:24,807 INFO L430 AbstractCegarLoop]: === Iteration 230 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:24,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:24,808 INFO L82 PathProgramCache]: Analyzing trace with hash -416860438, now seen corresponding path program 224 times [2021-06-05 00:41:24,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:24,808 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026547840] [2021-06-05 00:41:24,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:24,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:25,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:25,116 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:25,116 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026547840] [2021-06-05 00:41:25,116 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026547840] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:25,116 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:25,117 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:25,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042054619] [2021-06-05 00:41:25,117 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:25,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:25,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:25,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:25,117 INFO L87 Difference]: Start difference. First operand 5974 states and 15946 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:25,833 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:41:25,978 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:26,138 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:41:26,315 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:41:26,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:26,452 INFO L93 Difference]: Finished difference Result 20515 states and 53057 transitions. [2021-06-05 00:41:26,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:26,453 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:26,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:26,471 INFO L225 Difference]: With dead ends: 20515 [2021-06-05 00:41:26,471 INFO L226 Difference]: Without dead ends: 20515 [2021-06-05 00:41:26,471 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1234.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:26,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20515 states. [2021-06-05 00:41:26,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20515 to 5910. [2021-06-05 00:41:26,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5908 states have (on average 2.6679079214624237) internal successors, (15762), 5909 states have internal predecessors, (15762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:26,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 15762 transitions. [2021-06-05 00:41:26,589 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 15762 transitions. Word has length 114 [2021-06-05 00:41:26,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:26,589 INFO L482 AbstractCegarLoop]: Abstraction has 5910 states and 15762 transitions. [2021-06-05 00:41:26,589 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:26,589 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 15762 transitions. [2021-06-05 00:41:26,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:26,593 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:26,593 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:26,593 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2021-06-05 00:41:26,593 INFO L430 AbstractCegarLoop]: === Iteration 231 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:26,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:26,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1058113582, now seen corresponding path program 225 times [2021-06-05 00:41:26,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:26,594 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273528776] [2021-06-05 00:41:26,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:26,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:26,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:26,892 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:26,893 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273528776] [2021-06-05 00:41:26,893 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273528776] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:26,893 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:26,893 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:26,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499592615] [2021-06-05 00:41:26,893 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:26,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:26,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:26,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:26,893 INFO L87 Difference]: Start difference. First operand 5910 states and 15762 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:27,604 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:41:27,749 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:27,922 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:41:28,097 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:41:28,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:28,239 INFO L93 Difference]: Finished difference Result 18991 states and 49322 transitions. [2021-06-05 00:41:28,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:28,239 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:28,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:28,256 INFO L225 Difference]: With dead ends: 18991 [2021-06-05 00:41:28,257 INFO L226 Difference]: Without dead ends: 18991 [2021-06-05 00:41:28,257 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1223.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:28,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18991 states. [2021-06-05 00:41:28,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18991 to 5974. [2021-06-05 00:41:28,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5974 states, 5972 states have (on average 2.6701272605492297) internal successors, (15946), 5973 states have internal predecessors, (15946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:28,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 15946 transitions. [2021-06-05 00:41:28,369 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 15946 transitions. Word has length 114 [2021-06-05 00:41:28,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:28,369 INFO L482 AbstractCegarLoop]: Abstraction has 5974 states and 15946 transitions. [2021-06-05 00:41:28,369 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:28,369 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 15946 transitions. [2021-06-05 00:41:28,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:28,373 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:28,373 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:28,374 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2021-06-05 00:41:28,374 INFO L430 AbstractCegarLoop]: === Iteration 232 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:28,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:28,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1101379092, now seen corresponding path program 226 times [2021-06-05 00:41:28,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:28,374 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212909247] [2021-06-05 00:41:28,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:28,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:28,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:28,660 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:28,660 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212909247] [2021-06-05 00:41:28,660 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212909247] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:28,660 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:28,660 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:28,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376389560] [2021-06-05 00:41:28,660 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:28,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:28,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:28,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:28,661 INFO L87 Difference]: Start difference. First operand 5974 states and 15946 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:29,367 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:41:29,510 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:29,681 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:41:29,854 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:41:29,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:29,999 INFO L93 Difference]: Finished difference Result 19837 states and 51182 transitions. [2021-06-05 00:41:30,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:30,000 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:30,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:30,017 INFO L225 Difference]: With dead ends: 19837 [2021-06-05 00:41:30,018 INFO L226 Difference]: Without dead ends: 19837 [2021-06-05 00:41:30,018 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1210.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:30,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19837 states. [2021-06-05 00:41:30,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19837 to 5958. [2021-06-05 00:41:30,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5958 states, 5956 states have (on average 2.669576897246474) internal successors, (15900), 5957 states have internal predecessors, (15900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:30,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5958 states to 5958 states and 15900 transitions. [2021-06-05 00:41:30,133 INFO L78 Accepts]: Start accepts. Automaton has 5958 states and 15900 transitions. Word has length 114 [2021-06-05 00:41:30,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:30,133 INFO L482 AbstractCegarLoop]: Abstraction has 5958 states and 15900 transitions. [2021-06-05 00:41:30,133 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:30,133 INFO L276 IsEmpty]: Start isEmpty. Operand 5958 states and 15900 transitions. [2021-06-05 00:41:30,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:30,137 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:30,137 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:30,137 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2021-06-05 00:41:30,137 INFO L430 AbstractCegarLoop]: === Iteration 233 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:30,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:30,137 INFO L82 PathProgramCache]: Analyzing trace with hash -303515632, now seen corresponding path program 227 times [2021-06-05 00:41:30,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:30,138 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563657832] [2021-06-05 00:41:30,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:30,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:30,443 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:30,444 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563657832] [2021-06-05 00:41:30,444 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563657832] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:30,444 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:30,444 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:30,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394757582] [2021-06-05 00:41:30,444 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:30,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:30,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:30,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:30,444 INFO L87 Difference]: Start difference. First operand 5958 states and 15900 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:31,175 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:41:31,325 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:31,496 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:41:31,674 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:41:31,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:31,846 INFO L93 Difference]: Finished difference Result 23043 states and 59296 transitions. [2021-06-05 00:41:31,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:31,847 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:31,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:31,866 INFO L225 Difference]: With dead ends: 23043 [2021-06-05 00:41:31,866 INFO L226 Difference]: Without dead ends: 23043 [2021-06-05 00:41:31,866 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1235.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:31,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23043 states. [2021-06-05 00:41:31,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23043 to 5974. [2021-06-05 00:41:31,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5974 states, 5972 states have (on average 2.6701272605492297) internal successors, (15946), 5973 states have internal predecessors, (15946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:31,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 15946 transitions. [2021-06-05 00:41:31,992 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 15946 transitions. Word has length 114 [2021-06-05 00:41:31,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:31,992 INFO L482 AbstractCegarLoop]: Abstraction has 5974 states and 15946 transitions. [2021-06-05 00:41:31,992 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:31,992 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 15946 transitions. [2021-06-05 00:41:31,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:31,996 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:31,996 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:31,996 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2021-06-05 00:41:31,997 INFO L430 AbstractCegarLoop]: === Iteration 234 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:31,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:31,997 INFO L82 PathProgramCache]: Analyzing trace with hash -552062612, now seen corresponding path program 228 times [2021-06-05 00:41:31,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:31,997 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017358508] [2021-06-05 00:41:31,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:32,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:32,275 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:32,275 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017358508] [2021-06-05 00:41:32,275 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017358508] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:32,275 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:32,275 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:32,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110061424] [2021-06-05 00:41:32,275 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:32,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:32,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:32,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:32,276 INFO L87 Difference]: Start difference. First operand 5974 states and 15946 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:32,980 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:41:33,140 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:33,298 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:41:33,473 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:41:33,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:33,607 INFO L93 Difference]: Finished difference Result 20001 states and 51634 transitions. [2021-06-05 00:41:33,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:33,607 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:33,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:33,624 INFO L225 Difference]: With dead ends: 20001 [2021-06-05 00:41:33,625 INFO L226 Difference]: Without dead ends: 20001 [2021-06-05 00:41:33,625 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1209.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:33,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20001 states. [2021-06-05 00:41:33,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20001 to 5942. [2021-06-05 00:41:33,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5942 states, 5940 states have (on average 2.669023569023569) internal successors, (15854), 5941 states have internal predecessors, (15854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:33,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5942 states to 5942 states and 15854 transitions. [2021-06-05 00:41:33,744 INFO L78 Accepts]: Start accepts. Automaton has 5942 states and 15854 transitions. Word has length 114 [2021-06-05 00:41:33,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:33,744 INFO L482 AbstractCegarLoop]: Abstraction has 5942 states and 15854 transitions. [2021-06-05 00:41:33,744 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:33,744 INFO L276 IsEmpty]: Start isEmpty. Operand 5942 states and 15854 transitions. [2021-06-05 00:41:33,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:33,748 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:33,749 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:33,749 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2021-06-05 00:41:33,749 INFO L430 AbstractCegarLoop]: === Iteration 235 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:33,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:33,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1572332918, now seen corresponding path program 229 times [2021-06-05 00:41:33,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:33,749 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046295732] [2021-06-05 00:41:33,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:34,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:34,046 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:34,046 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046295732] [2021-06-05 00:41:34,046 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046295732] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:34,046 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:34,046 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:34,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088826898] [2021-06-05 00:41:34,046 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:34,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:34,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:34,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:34,046 INFO L87 Difference]: Start difference. First operand 5942 states and 15854 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:34,740 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:41:34,894 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:35,062 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:41:35,239 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:41:35,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:35,380 INFO L93 Difference]: Finished difference Result 19121 states and 49507 transitions. [2021-06-05 00:41:35,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:35,380 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:35,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:35,396 INFO L225 Difference]: With dead ends: 19121 [2021-06-05 00:41:35,397 INFO L226 Difference]: Without dead ends: 19121 [2021-06-05 00:41:35,397 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1219.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:35,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19121 states. [2021-06-05 00:41:35,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19121 to 5990. [2021-06-05 00:41:35,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5990 states, 5988 states have (on average 2.670674682698731) internal successors, (15992), 5989 states have internal predecessors, (15992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:35,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5990 states to 5990 states and 15992 transitions. [2021-06-05 00:41:35,517 INFO L78 Accepts]: Start accepts. Automaton has 5990 states and 15992 transitions. Word has length 114 [2021-06-05 00:41:35,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:35,517 INFO L482 AbstractCegarLoop]: Abstraction has 5990 states and 15992 transitions. [2021-06-05 00:41:35,517 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:35,517 INFO L276 IsEmpty]: Start isEmpty. Operand 5990 states and 15992 transitions. [2021-06-05 00:41:35,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:35,521 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:35,521 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:35,522 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2021-06-05 00:41:35,522 INFO L430 AbstractCegarLoop]: === Iteration 236 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:35,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:35,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1820879898, now seen corresponding path program 230 times [2021-06-05 00:41:35,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:35,522 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895581118] [2021-06-05 00:41:35,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:35,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:35,841 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:35,841 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895581118] [2021-06-05 00:41:35,841 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895581118] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:35,841 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:35,841 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:35,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118036532] [2021-06-05 00:41:35,841 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:35,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:35,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:35,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:35,841 INFO L87 Difference]: Start difference. First operand 5990 states and 15992 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:36,576 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:41:36,739 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:36,900 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:41:37,094 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:41:37,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:37,241 INFO L93 Difference]: Finished difference Result 18957 states and 49105 transitions. [2021-06-05 00:41:37,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:37,242 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:37,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:37,258 INFO L225 Difference]: With dead ends: 18957 [2021-06-05 00:41:37,258 INFO L226 Difference]: Without dead ends: 18957 [2021-06-05 00:41:37,259 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1247.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:37,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18957 states. [2021-06-05 00:41:37,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18957 to 5974. [2021-06-05 00:41:37,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5974 states, 5972 states have (on average 2.6701272605492297) internal successors, (15946), 5973 states have internal predecessors, (15946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:37,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 15946 transitions. [2021-06-05 00:41:37,372 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 15946 transitions. Word has length 114 [2021-06-05 00:41:37,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:37,373 INFO L482 AbstractCegarLoop]: Abstraction has 5974 states and 15946 transitions. [2021-06-05 00:41:37,373 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:37,373 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 15946 transitions. [2021-06-05 00:41:37,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:37,377 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:37,377 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:37,377 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2021-06-05 00:41:37,377 INFO L430 AbstractCegarLoop]: === Iteration 237 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:37,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:37,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1317270094, now seen corresponding path program 231 times [2021-06-05 00:41:37,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:37,377 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782251345] [2021-06-05 00:41:37,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:37,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:37,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:37,671 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:37,671 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782251345] [2021-06-05 00:41:37,671 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782251345] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:37,671 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:37,671 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:37,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692180666] [2021-06-05 00:41:37,672 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:37,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:37,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:37,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:37,672 INFO L87 Difference]: Start difference. First operand 5974 states and 15946 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:38,389 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:41:38,539 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:41:38,712 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:41:38,893 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:41:39,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:39,028 INFO L93 Difference]: Finished difference Result 16015 states and 41677 transitions. [2021-06-05 00:41:39,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:39,028 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:39,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:39,042 INFO L225 Difference]: With dead ends: 16015 [2021-06-05 00:41:39,043 INFO L226 Difference]: Without dead ends: 16015 [2021-06-05 00:41:39,043 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1215.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:39,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16015 states. [2021-06-05 00:41:39,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16015 to 5814. [2021-06-05 00:41:39,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5814 states, 5812 states have (on average 2.6644872677219547) internal successors, (15486), 5813 states have internal predecessors, (15486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:39,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5814 states to 5814 states and 15486 transitions. [2021-06-05 00:41:39,140 INFO L78 Accepts]: Start accepts. Automaton has 5814 states and 15486 transitions. Word has length 114 [2021-06-05 00:41:39,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:39,141 INFO L482 AbstractCegarLoop]: Abstraction has 5814 states and 15486 transitions. [2021-06-05 00:41:39,141 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:39,141 INFO L276 IsEmpty]: Start isEmpty. Operand 5814 states and 15486 transitions. [2021-06-05 00:41:39,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:39,145 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:39,145 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:39,145 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2021-06-05 00:41:39,145 INFO L430 AbstractCegarLoop]: === Iteration 238 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:39,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:39,145 INFO L82 PathProgramCache]: Analyzing trace with hash 255391690, now seen corresponding path program 232 times [2021-06-05 00:41:39,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:39,145 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997383149] [2021-06-05 00:41:39,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:39,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:39,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:39,443 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:39,443 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997383149] [2021-06-05 00:41:39,443 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997383149] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:39,443 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:39,443 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:39,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900693660] [2021-06-05 00:41:39,443 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:39,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:39,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:39,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:39,444 INFO L87 Difference]: Start difference. First operand 5814 states and 15486 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:40,168 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:41:40,311 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:41:40,485 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:41:40,665 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:41:40,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:40,808 INFO L93 Difference]: Finished difference Result 13869 states and 36203 transitions. [2021-06-05 00:41:40,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:40,808 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:40,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:40,820 INFO L225 Difference]: With dead ends: 13869 [2021-06-05 00:41:40,820 INFO L226 Difference]: Without dead ends: 13869 [2021-06-05 00:41:40,820 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1213.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:40,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13869 states. [2021-06-05 00:41:40,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13869 to 5974. [2021-06-05 00:41:40,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5974 states, 5972 states have (on average 2.6701272605492297) internal successors, (15946), 5973 states have internal predecessors, (15946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:40,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 15946 transitions. [2021-06-05 00:41:40,909 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 15946 transitions. Word has length 114 [2021-06-05 00:41:40,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:40,910 INFO L482 AbstractCegarLoop]: Abstraction has 5974 states and 15946 transitions. [2021-06-05 00:41:40,910 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:40,910 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 15946 transitions. [2021-06-05 00:41:40,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:40,914 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:40,914 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:40,914 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2021-06-05 00:41:40,914 INFO L430 AbstractCegarLoop]: === Iteration 239 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:40,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:40,914 INFO L82 PathProgramCache]: Analyzing trace with hash -2126338870, now seen corresponding path program 233 times [2021-06-05 00:41:40,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:40,914 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683385319] [2021-06-05 00:41:40,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:41,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:41,234 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:41,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683385319] [2021-06-05 00:41:41,234 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683385319] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:41,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:41,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:41,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589871894] [2021-06-05 00:41:41,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:41,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:41,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:41,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:41,235 INFO L87 Difference]: Start difference. First operand 5974 states and 15946 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:41,953 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:41:42,116 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:42,277 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:41:42,459 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:41:42,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:42,606 INFO L93 Difference]: Finished difference Result 16493 states and 42926 transitions. [2021-06-05 00:41:42,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:42,606 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:42,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:42,620 INFO L225 Difference]: With dead ends: 16493 [2021-06-05 00:41:42,620 INFO L226 Difference]: Without dead ends: 16493 [2021-06-05 00:41:42,620 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1214.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:42,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16493 states. [2021-06-05 00:41:42,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16493 to 5990. [2021-06-05 00:41:42,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5990 states, 5988 states have (on average 2.670674682698731) internal successors, (15992), 5989 states have internal predecessors, (15992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:42,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5990 states to 5990 states and 15992 transitions. [2021-06-05 00:41:42,719 INFO L78 Accepts]: Start accepts. Automaton has 5990 states and 15992 transitions. Word has length 114 [2021-06-05 00:41:42,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:42,720 INFO L482 AbstractCegarLoop]: Abstraction has 5990 states and 15992 transitions. [2021-06-05 00:41:42,720 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:42,720 INFO L276 IsEmpty]: Start isEmpty. Operand 5990 states and 15992 transitions. [2021-06-05 00:41:42,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:42,724 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:42,724 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:42,724 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2021-06-05 00:41:42,724 INFO L430 AbstractCegarLoop]: === Iteration 240 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:42,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:42,724 INFO L82 PathProgramCache]: Analyzing trace with hash 9135752, now seen corresponding path program 234 times [2021-06-05 00:41:42,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:42,724 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419608530] [2021-06-05 00:41:42,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:43,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:43,021 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:43,021 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419608530] [2021-06-05 00:41:43,021 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419608530] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:43,021 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:43,021 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:43,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760217855] [2021-06-05 00:41:43,021 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:43,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:43,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:43,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:43,022 INFO L87 Difference]: Start difference. First operand 5990 states and 15992 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:43,742 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:41:43,922 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:44,096 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:41:44,275 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:41:44,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:44,419 INFO L93 Difference]: Finished difference Result 14773 states and 38214 transitions. [2021-06-05 00:41:44,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:44,420 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:44,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:44,433 INFO L225 Difference]: With dead ends: 14773 [2021-06-05 00:41:44,433 INFO L226 Difference]: Without dead ends: 14773 [2021-06-05 00:41:44,433 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1244.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:44,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14773 states. [2021-06-05 00:41:44,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14773 to 5942. [2021-06-05 00:41:44,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5942 states, 5940 states have (on average 2.669023569023569) internal successors, (15854), 5941 states have internal predecessors, (15854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:44,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5942 states to 5942 states and 15854 transitions. [2021-06-05 00:41:44,530 INFO L78 Accepts]: Start accepts. Automaton has 5942 states and 15854 transitions. Word has length 114 [2021-06-05 00:41:44,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:44,531 INFO L482 AbstractCegarLoop]: Abstraction has 5942 states and 15854 transitions. [2021-06-05 00:41:44,531 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:44,531 INFO L276 IsEmpty]: Start isEmpty. Operand 5942 states and 15854 transitions. [2021-06-05 00:41:44,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:44,535 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:44,535 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:44,535 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2021-06-05 00:41:44,535 INFO L430 AbstractCegarLoop]: === Iteration 241 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:44,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:44,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1804592246, now seen corresponding path program 235 times [2021-06-05 00:41:44,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:44,536 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720296740] [2021-06-05 00:41:44,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:44,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:44,817 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:44,817 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720296740] [2021-06-05 00:41:44,817 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720296740] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:44,817 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:44,817 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:44,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557073140] [2021-06-05 00:41:44,817 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:44,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:44,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:44,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:44,818 INFO L87 Difference]: Start difference. First operand 5942 states and 15854 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:45,525 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:41:45,668 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:45,830 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:41:46,011 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:41:46,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:46,156 INFO L93 Difference]: Finished difference Result 17849 states and 46143 transitions. [2021-06-05 00:41:46,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:46,156 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:46,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:46,171 INFO L225 Difference]: With dead ends: 17849 [2021-06-05 00:41:46,171 INFO L226 Difference]: Without dead ends: 17849 [2021-06-05 00:41:46,172 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1206.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:46,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17849 states. [2021-06-05 00:41:46,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17849 to 5974. [2021-06-05 00:41:46,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5974 states, 5972 states have (on average 2.6701272605492297) internal successors, (15946), 5973 states have internal predecessors, (15946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:46,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 15946 transitions. [2021-06-05 00:41:46,278 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 15946 transitions. Word has length 114 [2021-06-05 00:41:46,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:46,278 INFO L482 AbstractCegarLoop]: Abstraction has 5974 states and 15946 transitions. [2021-06-05 00:41:46,279 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:46,279 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 15946 transitions. [2021-06-05 00:41:46,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:46,283 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:46,283 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:46,283 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2021-06-05 00:41:46,283 INFO L430 AbstractCegarLoop]: === Iteration 242 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:46,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:46,283 INFO L82 PathProgramCache]: Analyzing trace with hash 330882376, now seen corresponding path program 236 times [2021-06-05 00:41:46,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:46,284 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119537329] [2021-06-05 00:41:46,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:46,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:46,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:46,595 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:46,595 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119537329] [2021-06-05 00:41:46,595 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119537329] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:46,595 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:46,595 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:46,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429273270] [2021-06-05 00:41:46,595 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:46,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:46,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:46,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:46,596 INFO L87 Difference]: Start difference. First operand 5974 states and 15946 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:47,303 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:41:47,445 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:47,616 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:41:47,789 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:41:47,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:47,935 INFO L93 Difference]: Finished difference Result 18695 states and 48003 transitions. [2021-06-05 00:41:47,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:47,935 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:47,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:47,951 INFO L225 Difference]: With dead ends: 18695 [2021-06-05 00:41:47,951 INFO L226 Difference]: Without dead ends: 18695 [2021-06-05 00:41:47,952 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1240.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:47,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18695 states. [2021-06-05 00:41:48,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18695 to 5958. [2021-06-05 00:41:48,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5958 states, 5956 states have (on average 2.669576897246474) internal successors, (15900), 5957 states have internal predecessors, (15900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:48,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5958 states to 5958 states and 15900 transitions. [2021-06-05 00:41:48,064 INFO L78 Accepts]: Start accepts. Automaton has 5958 states and 15900 transitions. Word has length 114 [2021-06-05 00:41:48,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:48,064 INFO L482 AbstractCegarLoop]: Abstraction has 5958 states and 15900 transitions. [2021-06-05 00:41:48,064 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:48,064 INFO L276 IsEmpty]: Start isEmpty. Operand 5958 states and 15900 transitions. [2021-06-05 00:41:48,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:48,068 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:48,068 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:48,068 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2021-06-05 00:41:48,069 INFO L430 AbstractCegarLoop]: === Iteration 243 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:48,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:48,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1128745836, now seen corresponding path program 237 times [2021-06-05 00:41:48,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:48,069 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768224968] [2021-06-05 00:41:48,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:48,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:48,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:48,353 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:48,353 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768224968] [2021-06-05 00:41:48,353 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768224968] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:48,353 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:48,353 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:48,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751545171] [2021-06-05 00:41:48,354 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:48,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:48,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:48,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:48,354 INFO L87 Difference]: Start difference. First operand 5958 states and 15900 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:49,063 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:41:49,206 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:49,385 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:41:49,562 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:41:49,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:49,701 INFO L93 Difference]: Finished difference Result 17995 states and 46374 transitions. [2021-06-05 00:41:49,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:49,701 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:49,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:49,716 INFO L225 Difference]: With dead ends: 17995 [2021-06-05 00:41:49,716 INFO L226 Difference]: Without dead ends: 17995 [2021-06-05 00:41:49,716 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1218.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:49,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17995 states. [2021-06-05 00:41:49,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17995 to 5974. [2021-06-05 00:41:49,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5974 states, 5972 states have (on average 2.6701272605492297) internal successors, (15946), 5973 states have internal predecessors, (15946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:49,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 15946 transitions. [2021-06-05 00:41:49,820 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 15946 transitions. Word has length 114 [2021-06-05 00:41:49,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:49,820 INFO L482 AbstractCegarLoop]: Abstraction has 5974 states and 15946 transitions. [2021-06-05 00:41:49,820 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:49,820 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 15946 transitions. [2021-06-05 00:41:49,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:49,824 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:49,824 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:49,824 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2021-06-05 00:41:49,824 INFO L430 AbstractCegarLoop]: === Iteration 244 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:49,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:49,824 INFO L82 PathProgramCache]: Analyzing trace with hash 880198856, now seen corresponding path program 238 times [2021-06-05 00:41:49,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:49,824 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21945988] [2021-06-05 00:41:49,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:49,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:50,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:50,102 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:50,102 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21945988] [2021-06-05 00:41:50,102 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21945988] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:50,102 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:50,103 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:50,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106847998] [2021-06-05 00:41:50,103 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:50,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:50,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:50,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:50,103 INFO L87 Difference]: Start difference. First operand 5974 states and 15946 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:50,810 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:41:50,954 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:51,113 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:41:51,290 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:41:51,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:51,411 INFO L93 Difference]: Finished difference Result 14953 states and 38712 transitions. [2021-06-05 00:41:51,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:51,411 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:51,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:51,424 INFO L225 Difference]: With dead ends: 14953 [2021-06-05 00:41:51,424 INFO L226 Difference]: Without dead ends: 14953 [2021-06-05 00:41:51,424 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1201.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:51,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14953 states. [2021-06-05 00:41:51,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14953 to 5910. [2021-06-05 00:41:51,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5908 states have (on average 2.6679079214624237) internal successors, (15762), 5909 states have internal predecessors, (15762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:51,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 15762 transitions. [2021-06-05 00:41:51,517 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 15762 transitions. Word has length 114 [2021-06-05 00:41:51,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:51,517 INFO L482 AbstractCegarLoop]: Abstraction has 5910 states and 15762 transitions. [2021-06-05 00:41:51,517 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:51,517 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 15762 transitions. [2021-06-05 00:41:51,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:51,521 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:51,521 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:51,521 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2021-06-05 00:41:51,521 INFO L430 AbstractCegarLoop]: === Iteration 245 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:51,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:51,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1939794420, now seen corresponding path program 239 times [2021-06-05 00:41:51,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:51,521 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171408910] [2021-06-05 00:41:51,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:51,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:51,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:51,828 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:51,828 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171408910] [2021-06-05 00:41:51,828 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171408910] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:51,828 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:51,828 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:51,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12846055] [2021-06-05 00:41:51,829 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:51,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:51,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:51,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:51,829 INFO L87 Difference]: Start difference. First operand 5910 states and 15762 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:52,565 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:41:52,712 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:52,876 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:41:53,056 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:41:53,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:53,211 INFO L93 Difference]: Finished difference Result 18377 states and 47613 transitions. [2021-06-05 00:41:53,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:53,212 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:53,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:53,228 INFO L225 Difference]: With dead ends: 18377 [2021-06-05 00:41:53,228 INFO L226 Difference]: Without dead ends: 18377 [2021-06-05 00:41:53,228 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1233.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:53,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18377 states. [2021-06-05 00:41:53,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18377 to 5974. [2021-06-05 00:41:53,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5974 states, 5972 states have (on average 2.6701272605492297) internal successors, (15946), 5973 states have internal predecessors, (15946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:53,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 15946 transitions. [2021-06-05 00:41:53,336 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 15946 transitions. Word has length 114 [2021-06-05 00:41:53,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:53,336 INFO L482 AbstractCegarLoop]: Abstraction has 5974 states and 15946 transitions. [2021-06-05 00:41:53,336 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:53,336 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 15946 transitions. [2021-06-05 00:41:53,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:53,340 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:53,340 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:53,340 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2021-06-05 00:41:53,340 INFO L430 AbstractCegarLoop]: === Iteration 246 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:53,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:53,340 INFO L82 PathProgramCache]: Analyzing trace with hash 195680202, now seen corresponding path program 240 times [2021-06-05 00:41:53,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:53,340 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029100550] [2021-06-05 00:41:53,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:53,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:53,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:53,624 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:53,624 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029100550] [2021-06-05 00:41:53,624 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029100550] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:53,624 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:53,624 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:53,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767761887] [2021-06-05 00:41:53,625 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:53,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:53,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:53,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:53,625 INFO L87 Difference]: Start difference. First operand 5974 states and 15946 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:54,358 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:41:54,502 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:54,696 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:41:54,872 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:41:55,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:55,034 INFO L93 Difference]: Finished difference Result 19223 states and 49473 transitions. [2021-06-05 00:41:55,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:55,035 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:55,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:55,052 INFO L225 Difference]: With dead ends: 19223 [2021-06-05 00:41:55,052 INFO L226 Difference]: Without dead ends: 19223 [2021-06-05 00:41:55,052 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1229.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:55,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19223 states. [2021-06-05 00:41:55,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19223 to 5958. [2021-06-05 00:41:55,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5958 states, 5956 states have (on average 2.669576897246474) internal successors, (15900), 5957 states have internal predecessors, (15900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:55,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5958 states to 5958 states and 15900 transitions. [2021-06-05 00:41:55,171 INFO L78 Accepts]: Start accepts. Automaton has 5958 states and 15900 transitions. Word has length 114 [2021-06-05 00:41:55,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:55,171 INFO L482 AbstractCegarLoop]: Abstraction has 5958 states and 15900 transitions. [2021-06-05 00:41:55,172 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:55,172 INFO L276 IsEmpty]: Start isEmpty. Operand 5958 states and 15900 transitions. [2021-06-05 00:41:55,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:55,176 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:55,176 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:55,176 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2021-06-05 00:41:55,176 INFO L430 AbstractCegarLoop]: === Iteration 247 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:55,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:55,176 INFO L82 PathProgramCache]: Analyzing trace with hash 993543662, now seen corresponding path program 241 times [2021-06-05 00:41:55,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:55,176 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927671245] [2021-06-05 00:41:55,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:55,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:55,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:55,469 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:55,469 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927671245] [2021-06-05 00:41:55,469 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927671245] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:55,469 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:55,469 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:55,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373292389] [2021-06-05 00:41:55,469 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:55,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:55,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:55,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:55,470 INFO L87 Difference]: Start difference. First operand 5958 states and 15900 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:56,177 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:41:56,322 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:56,491 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:41:56,665 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:41:56,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:56,817 INFO L93 Difference]: Finished difference Result 22429 states and 57587 transitions. [2021-06-05 00:41:56,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:56,818 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:56,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:56,837 INFO L225 Difference]: With dead ends: 22429 [2021-06-05 00:41:56,837 INFO L226 Difference]: Without dead ends: 22429 [2021-06-05 00:41:56,838 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1216.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:56,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22429 states. [2021-06-05 00:41:56,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22429 to 5974. [2021-06-05 00:41:56,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5974 states, 5972 states have (on average 2.6701272605492297) internal successors, (15946), 5973 states have internal predecessors, (15946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:56,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 15946 transitions. [2021-06-05 00:41:56,965 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 15946 transitions. Word has length 114 [2021-06-05 00:41:56,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:56,965 INFO L482 AbstractCegarLoop]: Abstraction has 5974 states and 15946 transitions. [2021-06-05 00:41:56,965 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:56,965 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 15946 transitions. [2021-06-05 00:41:56,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:56,969 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:56,969 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:56,969 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2021-06-05 00:41:56,970 INFO L430 AbstractCegarLoop]: === Iteration 248 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:56,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:56,970 INFO L82 PathProgramCache]: Analyzing trace with hash 744996682, now seen corresponding path program 242 times [2021-06-05 00:41:56,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:56,970 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970897331] [2021-06-05 00:41:56,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:56,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:57,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:57,274 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:57,274 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970897331] [2021-06-05 00:41:57,274 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970897331] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:57,274 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:57,274 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:57,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310175789] [2021-06-05 00:41:57,275 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:57,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:57,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:57,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:57,275 INFO L87 Difference]: Start difference. First operand 5974 states and 15946 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:57,975 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:41:58,119 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:41:58,276 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:41:58,452 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:41:58,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:58,586 INFO L93 Difference]: Finished difference Result 19387 states and 49925 transitions. [2021-06-05 00:41:58,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:41:58,586 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:41:58,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:58,603 INFO L225 Difference]: With dead ends: 19387 [2021-06-05 00:41:58,603 INFO L226 Difference]: Without dead ends: 19387 [2021-06-05 00:41:58,603 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1217.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:41:58,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19387 states. [2021-06-05 00:41:58,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19387 to 5942. [2021-06-05 00:41:58,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5942 states, 5940 states have (on average 2.669023569023569) internal successors, (15854), 5941 states have internal predecessors, (15854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:58,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5942 states to 5942 states and 15854 transitions. [2021-06-05 00:41:58,722 INFO L78 Accepts]: Start accepts. Automaton has 5942 states and 15854 transitions. Word has length 114 [2021-06-05 00:41:58,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:58,723 INFO L482 AbstractCegarLoop]: Abstraction has 5942 states and 15854 transitions. [2021-06-05 00:41:58,723 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:58,723 INFO L276 IsEmpty]: Start isEmpty. Operand 5942 states and 15854 transitions. [2021-06-05 00:41:58,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:41:58,727 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:58,727 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:58,727 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2021-06-05 00:41:58,727 INFO L430 AbstractCegarLoop]: === Iteration 249 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:58,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:58,727 INFO L82 PathProgramCache]: Analyzing trace with hash -275273624, now seen corresponding path program 243 times [2021-06-05 00:41:58,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:58,727 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318376141] [2021-06-05 00:41:58,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:59,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:59,047 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:59,047 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318376141] [2021-06-05 00:41:59,047 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318376141] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:59,047 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:59,048 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:41:59,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592594585] [2021-06-05 00:41:59,048 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:41:59,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:59,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:41:59,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:41:59,048 INFO L87 Difference]: Start difference. First operand 5942 states and 15854 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:59,760 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:41:59,939 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:42:00,111 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:42:00,296 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:42:00,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:00,450 INFO L93 Difference]: Finished difference Result 18507 states and 47798 transitions. [2021-06-05 00:42:00,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:00,450 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:00,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:00,465 INFO L225 Difference]: With dead ends: 18507 [2021-06-05 00:42:00,466 INFO L226 Difference]: Without dead ends: 18507 [2021-06-05 00:42:00,466 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1246.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:00,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18507 states. [2021-06-05 00:42:00,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18507 to 5990. [2021-06-05 00:42:00,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5990 states, 5988 states have (on average 2.670674682698731) internal successors, (15992), 5989 states have internal predecessors, (15992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:00,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5990 states to 5990 states and 15992 transitions. [2021-06-05 00:42:00,574 INFO L78 Accepts]: Start accepts. Automaton has 5990 states and 15992 transitions. Word has length 114 [2021-06-05 00:42:00,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:00,574 INFO L482 AbstractCegarLoop]: Abstraction has 5990 states and 15992 transitions. [2021-06-05 00:42:00,574 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:00,574 INFO L276 IsEmpty]: Start isEmpty. Operand 5990 states and 15992 transitions. [2021-06-05 00:42:00,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:00,579 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:00,579 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:00,579 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2021-06-05 00:42:00,579 INFO L430 AbstractCegarLoop]: === Iteration 250 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:00,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:00,579 INFO L82 PathProgramCache]: Analyzing trace with hash -523820604, now seen corresponding path program 244 times [2021-06-05 00:42:00,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:00,579 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541276503] [2021-06-05 00:42:00,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:00,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:00,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:00,868 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:00,868 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541276503] [2021-06-05 00:42:00,868 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541276503] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:00,868 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:00,868 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:00,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016509017] [2021-06-05 00:42:00,869 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:00,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:00,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:00,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:00,869 INFO L87 Difference]: Start difference. First operand 5990 states and 15992 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:01,580 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:42:01,739 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:42:01,900 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:42:02,081 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:42:02,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:02,234 INFO L93 Difference]: Finished difference Result 18343 states and 47396 transitions. [2021-06-05 00:42:02,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:02,234 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:02,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:02,251 INFO L225 Difference]: With dead ends: 18343 [2021-06-05 00:42:02,251 INFO L226 Difference]: Without dead ends: 18343 [2021-06-05 00:42:02,251 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1206.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:02,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18343 states. [2021-06-05 00:42:02,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18343 to 5974. [2021-06-05 00:42:02,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5974 states, 5972 states have (on average 2.6701272605492297) internal successors, (15946), 5973 states have internal predecessors, (15946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:02,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 15946 transitions. [2021-06-05 00:42:02,362 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 15946 transitions. Word has length 114 [2021-06-05 00:42:02,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:02,362 INFO L482 AbstractCegarLoop]: Abstraction has 5974 states and 15946 transitions. [2021-06-05 00:42:02,362 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:02,362 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 15946 transitions. [2021-06-05 00:42:02,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:02,366 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:02,366 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:02,366 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2021-06-05 00:42:02,366 INFO L430 AbstractCegarLoop]: === Iteration 251 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:02,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:02,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1680637908, now seen corresponding path program 245 times [2021-06-05 00:42:02,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:02,367 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852048402] [2021-06-05 00:42:02,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:02,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:02,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:02,685 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:02,685 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852048402] [2021-06-05 00:42:02,685 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852048402] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:02,685 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:02,685 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:02,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019421817] [2021-06-05 00:42:02,685 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:02,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:02,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:02,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:02,686 INFO L87 Difference]: Start difference. First operand 5974 states and 15946 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:03,385 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:42:03,522 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:42:03,695 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:42:03,875 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:42:04,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:04,002 INFO L93 Difference]: Finished difference Result 15401 states and 39968 transitions. [2021-06-05 00:42:04,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:04,002 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:04,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:04,015 INFO L225 Difference]: With dead ends: 15401 [2021-06-05 00:42:04,015 INFO L226 Difference]: Without dead ends: 15401 [2021-06-05 00:42:04,016 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1205.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:04,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15401 states. [2021-06-05 00:42:04,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15401 to 5846. [2021-06-05 00:42:04,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5846 states, 5844 states have (on average 2.6656399726214923) internal successors, (15578), 5845 states have internal predecessors, (15578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:04,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5846 states to 5846 states and 15578 transitions. [2021-06-05 00:42:04,113 INFO L78 Accepts]: Start accepts. Automaton has 5846 states and 15578 transitions. Word has length 114 [2021-06-05 00:42:04,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:04,113 INFO L482 AbstractCegarLoop]: Abstraction has 5846 states and 15578 transitions. [2021-06-05 00:42:04,113 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:04,113 INFO L276 IsEmpty]: Start isEmpty. Operand 5846 states and 15578 transitions. [2021-06-05 00:42:04,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:04,117 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:04,117 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:04,117 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2021-06-05 00:42:04,117 INFO L430 AbstractCegarLoop]: === Iteration 252 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:04,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:04,118 INFO L82 PathProgramCache]: Analyzing trace with hash 531866734, now seen corresponding path program 246 times [2021-06-05 00:42:04,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:04,118 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160959434] [2021-06-05 00:42:04,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:04,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:04,398 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:04,398 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160959434] [2021-06-05 00:42:04,399 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160959434] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:04,399 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:04,399 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:04,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143533406] [2021-06-05 00:42:04,399 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:04,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:04,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:04,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:04,399 INFO L87 Difference]: Start difference. First operand 5846 states and 15578 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:05,108 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:42:05,270 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:42:05,443 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:42:05,617 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:42:05,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:05,743 INFO L93 Difference]: Finished difference Result 13365 states and 34793 transitions. [2021-06-05 00:42:05,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:05,743 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:05,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:05,754 INFO L225 Difference]: With dead ends: 13365 [2021-06-05 00:42:05,754 INFO L226 Difference]: Without dead ends: 13365 [2021-06-05 00:42:05,755 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1236.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:05,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13365 states. [2021-06-05 00:42:05,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13365 to 5926. [2021-06-05 00:42:05,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5926 states, 5924 states have (on average 2.6684672518568533) internal successors, (15808), 5925 states have internal predecessors, (15808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:05,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 15808 transitions. [2021-06-05 00:42:05,840 INFO L78 Accepts]: Start accepts. Automaton has 5926 states and 15808 transitions. Word has length 114 [2021-06-05 00:42:05,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:05,840 INFO L482 AbstractCegarLoop]: Abstraction has 5926 states and 15808 transitions. [2021-06-05 00:42:05,840 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:05,840 INFO L276 IsEmpty]: Start isEmpty. Operand 5926 states and 15808 transitions. [2021-06-05 00:42:05,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:05,844 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:05,844 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:05,844 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2021-06-05 00:42:05,844 INFO L430 AbstractCegarLoop]: === Iteration 253 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:05,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:05,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1627625940, now seen corresponding path program 247 times [2021-06-05 00:42:05,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:05,845 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998743591] [2021-06-05 00:42:05,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:05,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:06,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:06,125 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:06,125 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998743591] [2021-06-05 00:42:06,125 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998743591] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:06,125 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:06,125 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:06,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590740127] [2021-06-05 00:42:06,125 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:06,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:06,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:06,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:06,126 INFO L87 Difference]: Start difference. First operand 5926 states and 15808 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:06,843 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:42:06,985 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:42:07,173 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:42:07,346 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:42:07,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:07,475 INFO L93 Difference]: Finished difference Result 14211 states and 36653 transitions. [2021-06-05 00:42:07,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:07,475 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:07,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:07,490 INFO L225 Difference]: With dead ends: 14211 [2021-06-05 00:42:07,490 INFO L226 Difference]: Without dead ends: 14211 [2021-06-05 00:42:07,490 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1242.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:07,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14211 states. [2021-06-05 00:42:07,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14211 to 5910. [2021-06-05 00:42:07,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5908 states have (on average 2.6679079214624237) internal successors, (15762), 5909 states have internal predecessors, (15762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:07,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 15762 transitions. [2021-06-05 00:42:07,591 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 15762 transitions. Word has length 114 [2021-06-05 00:42:07,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:07,592 INFO L482 AbstractCegarLoop]: Abstraction has 5910 states and 15762 transitions. [2021-06-05 00:42:07,592 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:07,592 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 15762 transitions. [2021-06-05 00:42:07,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:07,596 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:07,596 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:07,596 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2021-06-05 00:42:07,596 INFO L430 AbstractCegarLoop]: === Iteration 254 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:07,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:07,596 INFO L82 PathProgramCache]: Analyzing trace with hash -829762480, now seen corresponding path program 248 times [2021-06-05 00:42:07,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:07,596 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86880792] [2021-06-05 00:42:07,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:07,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:07,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:07,878 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:07,878 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86880792] [2021-06-05 00:42:07,878 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86880792] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:07,905 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:07,905 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:07,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335777811] [2021-06-05 00:42:07,905 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:07,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:07,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:07,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:07,906 INFO L87 Difference]: Start difference. First operand 5910 states and 15762 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:08,603 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:42:08,745 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:42:08,911 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:42:09,084 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:42:09,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:09,222 INFO L93 Difference]: Finished difference Result 17417 states and 44767 transitions. [2021-06-05 00:42:09,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:09,222 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:09,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:09,237 INFO L225 Difference]: With dead ends: 17417 [2021-06-05 00:42:09,237 INFO L226 Difference]: Without dead ends: 17417 [2021-06-05 00:42:09,237 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1206.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:09,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17417 states. [2021-06-05 00:42:09,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17417 to 5926. [2021-06-05 00:42:09,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5926 states, 5924 states have (on average 2.6684672518568533) internal successors, (15808), 5925 states have internal predecessors, (15808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:09,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 15808 transitions. [2021-06-05 00:42:09,341 INFO L78 Accepts]: Start accepts. Automaton has 5926 states and 15808 transitions. Word has length 114 [2021-06-05 00:42:09,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:09,341 INFO L482 AbstractCegarLoop]: Abstraction has 5926 states and 15808 transitions. [2021-06-05 00:42:09,341 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:09,341 INFO L276 IsEmpty]: Start isEmpty. Operand 5926 states and 15808 transitions. [2021-06-05 00:42:09,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:09,345 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:09,345 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:09,345 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2021-06-05 00:42:09,346 INFO L430 AbstractCegarLoop]: === Iteration 255 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:09,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:09,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1078309460, now seen corresponding path program 249 times [2021-06-05 00:42:09,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:09,346 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186917144] [2021-06-05 00:42:09,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:09,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:09,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:09,623 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:09,623 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186917144] [2021-06-05 00:42:09,623 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186917144] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:09,623 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:09,623 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:09,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785571486] [2021-06-05 00:42:09,624 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:09,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:09,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:09,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:09,624 INFO L87 Difference]: Start difference. First operand 5926 states and 15808 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:10,346 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:42:10,495 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:42:10,654 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:42:10,848 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:42:10,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:10,977 INFO L93 Difference]: Finished difference Result 14375 states and 37105 transitions. [2021-06-05 00:42:10,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:10,977 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:10,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:10,989 INFO L225 Difference]: With dead ends: 14375 [2021-06-05 00:42:10,989 INFO L226 Difference]: Without dead ends: 14375 [2021-06-05 00:42:10,989 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1218.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:11,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14375 states. [2021-06-05 00:42:11,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14375 to 5894. [2021-06-05 00:42:11,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5894 states, 5892 states have (on average 2.6673455532926003) internal successors, (15716), 5893 states have internal predecessors, (15716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:11,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5894 states to 5894 states and 15716 transitions. [2021-06-05 00:42:11,080 INFO L78 Accepts]: Start accepts. Automaton has 5894 states and 15716 transitions. Word has length 114 [2021-06-05 00:42:11,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:11,080 INFO L482 AbstractCegarLoop]: Abstraction has 5894 states and 15716 transitions. [2021-06-05 00:42:11,080 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:11,080 INFO L276 IsEmpty]: Start isEmpty. Operand 5894 states and 15716 transitions. [2021-06-05 00:42:11,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:11,084 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:11,084 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:11,084 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2021-06-05 00:42:11,084 INFO L430 AbstractCegarLoop]: === Iteration 256 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:11,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:11,085 INFO L82 PathProgramCache]: Analyzing trace with hash -2098579766, now seen corresponding path program 250 times [2021-06-05 00:42:11,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:11,085 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350690320] [2021-06-05 00:42:11,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:11,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:11,379 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:11,379 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350690320] [2021-06-05 00:42:11,379 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350690320] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:11,379 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:11,379 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:11,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562434367] [2021-06-05 00:42:11,379 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:11,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:11,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:11,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:11,380 INFO L87 Difference]: Start difference. First operand 5894 states and 15716 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:12,096 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:42:12,259 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:42:12,432 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:42:12,610 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:42:12,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:12,768 INFO L93 Difference]: Finished difference Result 17897 states and 46099 transitions. [2021-06-05 00:42:12,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:12,769 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:12,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:12,785 INFO L225 Difference]: With dead ends: 17897 [2021-06-05 00:42:12,785 INFO L226 Difference]: Without dead ends: 17897 [2021-06-05 00:42:12,786 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1225.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:12,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17897 states. [2021-06-05 00:42:12,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17897 to 5942. [2021-06-05 00:42:12,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5942 states, 5940 states have (on average 2.669023569023569) internal successors, (15854), 5941 states have internal predecessors, (15854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:12,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5942 states to 5942 states and 15854 transitions. [2021-06-05 00:42:12,893 INFO L78 Accepts]: Start accepts. Automaton has 5942 states and 15854 transitions. Word has length 114 [2021-06-05 00:42:12,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:12,893 INFO L482 AbstractCegarLoop]: Abstraction has 5942 states and 15854 transitions. [2021-06-05 00:42:12,893 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:12,893 INFO L276 IsEmpty]: Start isEmpty. Operand 5942 states and 15854 transitions. [2021-06-05 00:42:12,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:12,897 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:12,897 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:12,897 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2021-06-05 00:42:12,897 INFO L430 AbstractCegarLoop]: === Iteration 257 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:12,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:12,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1947840550, now seen corresponding path program 251 times [2021-06-05 00:42:12,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:12,898 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434411404] [2021-06-05 00:42:12,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:12,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:13,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:13,187 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:13,187 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434411404] [2021-06-05 00:42:13,187 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434411404] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:13,187 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:13,187 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:13,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066793511] [2021-06-05 00:42:13,187 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:13,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:13,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:13,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:13,188 INFO L87 Difference]: Start difference. First operand 5942 states and 15854 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:13,891 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:42:14,047 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:42:14,206 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:42:14,381 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:42:14,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:14,516 INFO L93 Difference]: Finished difference Result 17733 states and 45697 transitions. [2021-06-05 00:42:14,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:14,517 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:14,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:14,532 INFO L225 Difference]: With dead ends: 17733 [2021-06-05 00:42:14,533 INFO L226 Difference]: Without dead ends: 17733 [2021-06-05 00:42:14,533 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1220.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:14,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17733 states. [2021-06-05 00:42:14,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17733 to 5926. [2021-06-05 00:42:14,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5926 states, 5924 states have (on average 2.6684672518568533) internal successors, (15808), 5925 states have internal predecessors, (15808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:14,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 15808 transitions. [2021-06-05 00:42:14,644 INFO L78 Accepts]: Start accepts. Automaton has 5926 states and 15808 transitions. Word has length 114 [2021-06-05 00:42:14,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:14,644 INFO L482 AbstractCegarLoop]: Abstraction has 5926 states and 15808 transitions. [2021-06-05 00:42:14,644 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:14,644 INFO L276 IsEmpty]: Start isEmpty. Operand 5926 states and 15808 transitions. [2021-06-05 00:42:14,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:14,648 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:14,648 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:14,649 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2021-06-05 00:42:14,649 INFO L430 AbstractCegarLoop]: === Iteration 258 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:14,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:14,649 INFO L82 PathProgramCache]: Analyzing trace with hash 791023246, now seen corresponding path program 252 times [2021-06-05 00:42:14,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:14,649 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702204927] [2021-06-05 00:42:14,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:14,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:14,940 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:14,940 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702204927] [2021-06-05 00:42:14,940 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702204927] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:14,940 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:14,940 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:14,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932485042] [2021-06-05 00:42:14,940 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:14,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:14,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:14,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:14,941 INFO L87 Difference]: Start difference. First operand 5926 states and 15808 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:15,647 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:42:15,783 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:42:15,959 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:42:16,154 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:42:16,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:16,287 INFO L93 Difference]: Finished difference Result 14791 states and 38269 transitions. [2021-06-05 00:42:16,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:16,288 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:16,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:16,301 INFO L225 Difference]: With dead ends: 14791 [2021-06-05 00:42:16,301 INFO L226 Difference]: Without dead ends: 14791 [2021-06-05 00:42:16,301 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1214.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:16,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14791 states. [2021-06-05 00:42:16,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14791 to 5862. [2021-06-05 00:42:16,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5862 states, 5860 states have (on average 2.666211604095563) internal successors, (15624), 5861 states have internal predecessors, (15624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:16,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5862 states to 5862 states and 15624 transitions. [2021-06-05 00:42:16,394 INFO L78 Accepts]: Start accepts. Automaton has 5862 states and 15624 transitions. Word has length 114 [2021-06-05 00:42:16,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:16,394 INFO L482 AbstractCegarLoop]: Abstraction has 5862 states and 15624 transitions. [2021-06-05 00:42:16,394 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:16,395 INFO L276 IsEmpty]: Start isEmpty. Operand 5862 states and 15624 transitions. [2021-06-05 00:42:16,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:16,399 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:16,399 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:16,399 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2021-06-05 00:42:16,399 INFO L430 AbstractCegarLoop]: === Iteration 259 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:16,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:16,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1694220184, now seen corresponding path program 253 times [2021-06-05 00:42:16,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:16,399 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108779394] [2021-06-05 00:42:16,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:16,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:16,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:16,704 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:16,704 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108779394] [2021-06-05 00:42:16,704 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108779394] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:16,704 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:16,704 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:16,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307862113] [2021-06-05 00:42:16,705 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:16,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:16,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:16,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:16,705 INFO L87 Difference]: Start difference. First operand 5862 states and 15624 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:17,409 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:42:17,570 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:42:17,741 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:42:17,919 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:42:18,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:18,057 INFO L93 Difference]: Finished difference Result 13463 states and 34886 transitions. [2021-06-05 00:42:18,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:18,058 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:18,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:18,070 INFO L225 Difference]: With dead ends: 13463 [2021-06-05 00:42:18,071 INFO L226 Difference]: Without dead ends: 13463 [2021-06-05 00:42:18,071 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1227.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:18,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13463 states. [2021-06-05 00:42:18,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13463 to 5926. [2021-06-05 00:42:18,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5926 states, 5924 states have (on average 2.6684672518568533) internal successors, (15808), 5925 states have internal predecessors, (15808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:18,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 15808 transitions. [2021-06-05 00:42:18,157 INFO L78 Accepts]: Start accepts. Automaton has 5926 states and 15808 transitions. Word has length 114 [2021-06-05 00:42:18,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:18,157 INFO L482 AbstractCegarLoop]: Abstraction has 5926 states and 15808 transitions. [2021-06-05 00:42:18,157 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:18,157 INFO L276 IsEmpty]: Start isEmpty. Operand 5926 states and 15808 transitions. [2021-06-05 00:42:18,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:18,161 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:18,161 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:18,161 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2021-06-05 00:42:18,161 INFO L430 AbstractCegarLoop]: === Iteration 260 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:18,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:18,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1942767164, now seen corresponding path program 254 times [2021-06-05 00:42:18,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:18,162 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234320846] [2021-06-05 00:42:18,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:18,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:18,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:18,464 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:18,464 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234320846] [2021-06-05 00:42:18,464 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234320846] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:18,464 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:18,464 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:18,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77240321] [2021-06-05 00:42:18,464 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:18,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:18,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:18,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:18,465 INFO L87 Difference]: Start difference. First operand 5926 states and 15808 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:19,178 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:42:19,336 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:42:19,497 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:42:19,676 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:42:19,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:19,802 INFO L93 Difference]: Finished difference Result 13299 states and 34484 transitions. [2021-06-05 00:42:19,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:19,802 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:19,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:19,813 INFO L225 Difference]: With dead ends: 13299 [2021-06-05 00:42:19,813 INFO L226 Difference]: Without dead ends: 13299 [2021-06-05 00:42:19,813 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1228.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:19,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13299 states. [2021-06-05 00:42:19,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13299 to 5910. [2021-06-05 00:42:19,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5908 states have (on average 2.6679079214624237) internal successors, (15762), 5909 states have internal predecessors, (15762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:19,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 15762 transitions. [2021-06-05 00:42:19,897 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 15762 transitions. Word has length 114 [2021-06-05 00:42:19,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:19,897 INFO L482 AbstractCegarLoop]: Abstraction has 5910 states and 15762 transitions. [2021-06-05 00:42:19,897 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:19,897 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 15762 transitions. [2021-06-05 00:42:19,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:19,901 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:19,901 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:19,901 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2021-06-05 00:42:19,901 INFO L430 AbstractCegarLoop]: === Iteration 261 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:19,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:19,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1195382828, now seen corresponding path program 255 times [2021-06-05 00:42:19,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:19,901 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062113771] [2021-06-05 00:42:19,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:19,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:20,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:20,203 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:20,203 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062113771] [2021-06-05 00:42:20,203 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062113771] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:20,203 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:20,203 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:20,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742767250] [2021-06-05 00:42:20,203 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:20,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:20,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:20,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:20,204 INFO L87 Difference]: Start difference. First operand 5910 states and 15762 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:20,895 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:42:21,030 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:42:21,203 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:42:21,384 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:42:21,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:21,508 INFO L93 Difference]: Finished difference Result 13587 states and 35312 transitions. [2021-06-05 00:42:21,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:21,508 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:21,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:21,520 INFO L225 Difference]: With dead ends: 13587 [2021-06-05 00:42:21,520 INFO L226 Difference]: Without dead ends: 13587 [2021-06-05 00:42:21,520 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1210.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:21,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13587 states. [2021-06-05 00:42:21,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13587 to 5878. [2021-06-05 00:42:21,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5878 states, 5876 states have (on average 2.666780122532335) internal successors, (15670), 5877 states have internal predecessors, (15670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:21,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 15670 transitions. [2021-06-05 00:42:21,619 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 15670 transitions. Word has length 114 [2021-06-05 00:42:21,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:21,619 INFO L482 AbstractCegarLoop]: Abstraction has 5878 states and 15670 transitions. [2021-06-05 00:42:21,619 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:21,619 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 15670 transitions. [2021-06-05 00:42:21,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:21,623 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:21,623 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:21,623 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2021-06-05 00:42:21,623 INFO L430 AbstractCegarLoop]: === Iteration 262 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:21,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:21,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1391401330, now seen corresponding path program 256 times [2021-06-05 00:42:21,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:21,624 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607186968] [2021-06-05 00:42:21,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:21,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:21,935 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:21,935 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607186968] [2021-06-05 00:42:21,935 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607186968] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:21,935 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:21,935 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:21,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21587640] [2021-06-05 00:42:21,936 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:21,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:21,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:21,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:21,936 INFO L87 Difference]: Start difference. First operand 5878 states and 15670 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:22,763 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:42:22,933 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:42:23,111 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:42:23,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:23,223 INFO L93 Difference]: Finished difference Result 10229 states and 26720 transitions. [2021-06-05 00:42:23,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:23,223 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:23,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:23,231 INFO L225 Difference]: With dead ends: 10229 [2021-06-05 00:42:23,231 INFO L226 Difference]: Without dead ends: 10229 [2021-06-05 00:42:23,231 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1211.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:23,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10229 states. [2021-06-05 00:42:23,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10229 to 5806. [2021-06-05 00:42:23,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5806 states, 5804 states have (on average 2.662646450723639) internal successors, (15454), 5805 states have internal predecessors, (15454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:23,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5806 states to 5806 states and 15454 transitions. [2021-06-05 00:42:23,303 INFO L78 Accepts]: Start accepts. Automaton has 5806 states and 15454 transitions. Word has length 114 [2021-06-05 00:42:23,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:23,303 INFO L482 AbstractCegarLoop]: Abstraction has 5806 states and 15454 transitions. [2021-06-05 00:42:23,303 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:23,303 INFO L276 IsEmpty]: Start isEmpty. Operand 5806 states and 15454 transitions. [2021-06-05 00:42:23,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:23,307 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:23,307 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:23,307 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2021-06-05 00:42:23,307 INFO L430 AbstractCegarLoop]: === Iteration 263 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:23,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:23,308 INFO L82 PathProgramCache]: Analyzing trace with hash -384338392, now seen corresponding path program 257 times [2021-06-05 00:42:23,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:23,308 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583204618] [2021-06-05 00:42:23,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:23,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:23,600 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:23,600 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583204618] [2021-06-05 00:42:23,600 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583204618] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:23,600 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:23,601 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:23,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72354779] [2021-06-05 00:42:23,601 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:23,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:23,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:23,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:23,601 INFO L87 Difference]: Start difference. First operand 5806 states and 15454 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:24,301 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:42:24,434 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:42:24,601 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:42:24,780 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:42:24,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:24,909 INFO L93 Difference]: Finished difference Result 13672 states and 35556 transitions. [2021-06-05 00:42:24,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:24,910 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:24,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:24,920 INFO L225 Difference]: With dead ends: 13672 [2021-06-05 00:42:24,920 INFO L226 Difference]: Without dead ends: 13672 [2021-06-05 00:42:24,921 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1212.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:24,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13672 states. [2021-06-05 00:42:25,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13672 to 5870. [2021-06-05 00:42:25,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5870 states, 5868 states have (on average 2.664962508520791) internal successors, (15638), 5869 states have internal predecessors, (15638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:25,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5870 states to 5870 states and 15638 transitions. [2021-06-05 00:42:25,015 INFO L78 Accepts]: Start accepts. Automaton has 5870 states and 15638 transitions. Word has length 114 [2021-06-05 00:42:25,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:25,015 INFO L482 AbstractCegarLoop]: Abstraction has 5870 states and 15638 transitions. [2021-06-05 00:42:25,015 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:25,015 INFO L276 IsEmpty]: Start isEmpty. Operand 5870 states and 15638 transitions. [2021-06-05 00:42:25,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:25,019 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:25,019 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:25,019 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2021-06-05 00:42:25,019 INFO L430 AbstractCegarLoop]: === Iteration 264 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:25,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:25,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1528898344, now seen corresponding path program 258 times [2021-06-05 00:42:25,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:25,020 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037095264] [2021-06-05 00:42:25,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:25,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:25,312 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:25,312 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037095264] [2021-06-05 00:42:25,312 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037095264] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:25,312 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:25,312 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:25,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17159689] [2021-06-05 00:42:25,312 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:25,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:25,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:25,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:25,313 INFO L87 Difference]: Start difference. First operand 5870 states and 15638 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:26,016 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:42:26,175 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:42:26,333 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:42:26,514 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:42:26,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:26,655 INFO L93 Difference]: Finished difference Result 16296 states and 42279 transitions. [2021-06-05 00:42:26,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:26,656 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:26,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:26,669 INFO L225 Difference]: With dead ends: 16296 [2021-06-05 00:42:26,669 INFO L226 Difference]: Without dead ends: 16296 [2021-06-05 00:42:26,670 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1210.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:26,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16296 states. [2021-06-05 00:42:26,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16296 to 5886. [2021-06-05 00:42:26,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5886 states, 5884 states have (on average 2.665533650577838) internal successors, (15684), 5885 states have internal predecessors, (15684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:26,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5886 states to 5886 states and 15684 transitions. [2021-06-05 00:42:26,771 INFO L78 Accepts]: Start accepts. Automaton has 5886 states and 15684 transitions. Word has length 114 [2021-06-05 00:42:26,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:26,771 INFO L482 AbstractCegarLoop]: Abstraction has 5886 states and 15684 transitions. [2021-06-05 00:42:26,771 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:26,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5886 states and 15684 transitions. [2021-06-05 00:42:26,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:26,775 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:26,775 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:26,775 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2021-06-05 00:42:26,775 INFO L430 AbstractCegarLoop]: === Iteration 265 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:26,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:26,776 INFO L82 PathProgramCache]: Analyzing trace with hash -630594330, now seen corresponding path program 259 times [2021-06-05 00:42:26,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:26,776 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819819799] [2021-06-05 00:42:26,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:26,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:27,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:27,099 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:27,099 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819819799] [2021-06-05 00:42:27,099 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819819799] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:27,099 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:27,099 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:27,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457323754] [2021-06-05 00:42:27,100 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:27,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:27,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:27,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:27,100 INFO L87 Difference]: Start difference. First operand 5886 states and 15684 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:27,806 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:42:27,963 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:42:28,132 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:42:28,310 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:42:28,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:28,450 INFO L93 Difference]: Finished difference Result 14576 states and 37567 transitions. [2021-06-05 00:42:28,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:28,450 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:28,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:28,462 INFO L225 Difference]: With dead ends: 14576 [2021-06-05 00:42:28,462 INFO L226 Difference]: Without dead ends: 14576 [2021-06-05 00:42:28,462 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1222.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:28,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14576 states. [2021-06-05 00:42:28,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14576 to 5838. [2021-06-05 00:42:28,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5838 states, 5836 states have (on average 2.6638108293351612) internal successors, (15546), 5837 states have internal predecessors, (15546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:28,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5838 states to 5838 states and 15546 transitions. [2021-06-05 00:42:28,554 INFO L78 Accepts]: Start accepts. Automaton has 5838 states and 15546 transitions. Word has length 114 [2021-06-05 00:42:28,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:28,554 INFO L482 AbstractCegarLoop]: Abstraction has 5838 states and 15546 transitions. [2021-06-05 00:42:28,554 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:28,554 INFO L276 IsEmpty]: Start isEmpty. Operand 5838 states and 15546 transitions. [2021-06-05 00:42:28,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:28,558 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:28,558 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:28,558 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2021-06-05 00:42:28,558 INFO L430 AbstractCegarLoop]: === Iteration 266 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:28,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:28,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1850644968, now seen corresponding path program 260 times [2021-06-05 00:42:28,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:28,558 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708113748] [2021-06-05 00:42:28,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:28,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:28,836 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:28,836 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708113748] [2021-06-05 00:42:28,836 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708113748] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:28,836 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:28,836 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:28,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809213659] [2021-06-05 00:42:28,837 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:28,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:28,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:28,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:28,837 INFO L87 Difference]: Start difference. First operand 5838 states and 15546 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:29,525 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:42:29,679 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:42:29,834 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:42:30,010 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:42:30,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:30,136 INFO L93 Difference]: Finished difference Result 13776 states and 35714 transitions. [2021-06-05 00:42:30,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:30,136 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:30,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:30,147 INFO L225 Difference]: With dead ends: 13776 [2021-06-05 00:42:30,147 INFO L226 Difference]: Without dead ends: 13776 [2021-06-05 00:42:30,147 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1204.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:30,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13776 states. [2021-06-05 00:42:30,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13776 to 5870. [2021-06-05 00:42:30,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5870 states, 5868 states have (on average 2.664962508520791) internal successors, (15638), 5869 states have internal predecessors, (15638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:30,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5870 states to 5870 states and 15638 transitions. [2021-06-05 00:42:30,235 INFO L78 Accepts]: Start accepts. Automaton has 5870 states and 15638 transitions. Word has length 114 [2021-06-05 00:42:30,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:30,236 INFO L482 AbstractCegarLoop]: Abstraction has 5870 states and 15638 transitions. [2021-06-05 00:42:30,236 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:30,236 INFO L276 IsEmpty]: Start isEmpty. Operand 5870 states and 15638 transitions. [2021-06-05 00:42:30,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:30,240 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:30,240 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:30,240 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2021-06-05 00:42:30,240 INFO L430 AbstractCegarLoop]: === Iteration 267 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:30,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:30,240 INFO L82 PathProgramCache]: Analyzing trace with hash -308847706, now seen corresponding path program 261 times [2021-06-05 00:42:30,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:30,240 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102842717] [2021-06-05 00:42:30,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:30,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:30,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:30,519 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:30,519 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102842717] [2021-06-05 00:42:30,519 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102842717] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:30,519 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:30,519 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:30,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231339440] [2021-06-05 00:42:30,519 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:30,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:30,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:30,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:30,520 INFO L87 Difference]: Start difference. First operand 5870 states and 15638 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:31,205 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:42:31,347 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:42:31,514 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:42:31,685 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:42:31,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:31,811 INFO L93 Difference]: Finished difference Result 14622 states and 37574 transitions. [2021-06-05 00:42:31,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:31,812 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:31,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:31,823 INFO L225 Difference]: With dead ends: 14622 [2021-06-05 00:42:31,823 INFO L226 Difference]: Without dead ends: 14622 [2021-06-05 00:42:31,823 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1199.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:31,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14622 states. [2021-06-05 00:42:31,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14622 to 5854. [2021-06-05 00:42:31,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5854 states, 5852 states have (on average 2.664388243335612) internal successors, (15592), 5853 states have internal predecessors, (15592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:31,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5854 states to 5854 states and 15592 transitions. [2021-06-05 00:42:31,914 INFO L78 Accepts]: Start accepts. Automaton has 5854 states and 15592 transitions. Word has length 114 [2021-06-05 00:42:31,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:31,915 INFO L482 AbstractCegarLoop]: Abstraction has 5854 states and 15592 transitions. [2021-06-05 00:42:31,915 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:31,915 INFO L276 IsEmpty]: Start isEmpty. Operand 5854 states and 15592 transitions. [2021-06-05 00:42:31,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:31,919 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:31,919 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:31,919 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2021-06-05 00:42:31,919 INFO L430 AbstractCegarLoop]: === Iteration 268 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:31,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:31,919 INFO L82 PathProgramCache]: Analyzing trace with hash 489015754, now seen corresponding path program 262 times [2021-06-05 00:42:31,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:31,919 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412973591] [2021-06-05 00:42:31,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:32,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:32,228 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:32,228 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412973591] [2021-06-05 00:42:32,228 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412973591] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:32,228 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:32,229 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:32,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170601375] [2021-06-05 00:42:32,229 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:32,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:32,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:32,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:32,229 INFO L87 Difference]: Start difference. First operand 5854 states and 15592 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:32,918 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:42:33,060 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:42:33,224 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:42:33,399 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:42:33,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:33,526 INFO L93 Difference]: Finished difference Result 13922 states and 35945 transitions. [2021-06-05 00:42:33,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:33,526 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:33,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:33,537 INFO L225 Difference]: With dead ends: 13922 [2021-06-05 00:42:33,537 INFO L226 Difference]: Without dead ends: 13922 [2021-06-05 00:42:33,538 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1234.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:33,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13922 states. [2021-06-05 00:42:33,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13922 to 5870. [2021-06-05 00:42:33,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5870 states, 5868 states have (on average 2.664962508520791) internal successors, (15638), 5869 states have internal predecessors, (15638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:33,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5870 states to 5870 states and 15638 transitions. [2021-06-05 00:42:33,629 INFO L78 Accepts]: Start accepts. Automaton has 5870 states and 15638 transitions. Word has length 114 [2021-06-05 00:42:33,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:33,629 INFO L482 AbstractCegarLoop]: Abstraction has 5870 states and 15638 transitions. [2021-06-05 00:42:33,629 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:33,629 INFO L276 IsEmpty]: Start isEmpty. Operand 5870 states and 15638 transitions. [2021-06-05 00:42:33,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:33,633 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:33,633 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:33,633 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2021-06-05 00:42:33,633 INFO L430 AbstractCegarLoop]: === Iteration 269 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:33,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:33,634 INFO L82 PathProgramCache]: Analyzing trace with hash 240468774, now seen corresponding path program 263 times [2021-06-05 00:42:33,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:33,634 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424464907] [2021-06-05 00:42:33,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:33,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:33,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:33,911 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:33,911 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424464907] [2021-06-05 00:42:33,911 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424464907] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:33,912 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:33,912 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:33,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22269262] [2021-06-05 00:42:33,912 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:33,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:33,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:33,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:33,912 INFO L87 Difference]: Start difference. First operand 5870 states and 15638 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:34,605 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:42:34,749 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:42:34,918 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:42:35,093 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:42:35,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:35,208 INFO L93 Difference]: Finished difference Result 11180 states and 29033 transitions. [2021-06-05 00:42:35,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:35,209 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:35,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:35,217 INFO L225 Difference]: With dead ends: 11180 [2021-06-05 00:42:35,217 INFO L226 Difference]: Without dead ends: 11180 [2021-06-05 00:42:35,217 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1210.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:35,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11180 states. [2021-06-05 00:42:35,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11180 to 5806. [2021-06-05 00:42:35,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5806 states, 5804 states have (on average 2.662646450723639) internal successors, (15454), 5805 states have internal predecessors, (15454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:35,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5806 states to 5806 states and 15454 transitions. [2021-06-05 00:42:35,294 INFO L78 Accepts]: Start accepts. Automaton has 5806 states and 15454 transitions. Word has length 114 [2021-06-05 00:42:35,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:35,294 INFO L482 AbstractCegarLoop]: Abstraction has 5806 states and 15454 transitions. [2021-06-05 00:42:35,294 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:35,295 INFO L276 IsEmpty]: Start isEmpty. Operand 5806 states and 15454 transitions. [2021-06-05 00:42:35,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:35,298 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:35,299 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:35,299 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2021-06-05 00:42:35,299 INFO L430 AbstractCegarLoop]: === Iteration 270 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:35,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:35,299 INFO L82 PathProgramCache]: Analyzing trace with hash -479016630, now seen corresponding path program 264 times [2021-06-05 00:42:35,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:35,299 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347306753] [2021-06-05 00:42:35,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:35,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:35,607 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:35,607 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347306753] [2021-06-05 00:42:35,607 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347306753] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:35,607 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:35,607 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:35,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603360663] [2021-06-05 00:42:35,607 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:35,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:35,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:35,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:35,608 INFO L87 Difference]: Start difference. First operand 5806 states and 15454 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:36,328 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:42:36,468 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:42:36,649 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:42:36,833 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:42:36,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:36,972 INFO L93 Difference]: Finished difference Result 12372 states and 32425 transitions. [2021-06-05 00:42:36,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:36,972 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:36,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:36,983 INFO L225 Difference]: With dead ends: 12372 [2021-06-05 00:42:36,983 INFO L226 Difference]: Without dead ends: 12372 [2021-06-05 00:42:36,984 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1232.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:37,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12372 states. [2021-06-05 00:42:37,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12372 to 5838. [2021-06-05 00:42:37,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5838 states, 5836 states have (on average 2.6638108293351612) internal successors, (15546), 5837 states have internal predecessors, (15546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:37,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5838 states to 5838 states and 15546 transitions. [2021-06-05 00:42:37,071 INFO L78 Accepts]: Start accepts. Automaton has 5838 states and 15546 transitions. Word has length 114 [2021-06-05 00:42:37,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:37,071 INFO L482 AbstractCegarLoop]: Abstraction has 5838 states and 15546 transitions. [2021-06-05 00:42:37,071 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:37,071 INFO L276 IsEmpty]: Start isEmpty. Operand 5838 states and 15546 transitions. [2021-06-05 00:42:37,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:37,075 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:37,075 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:37,075 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2021-06-05 00:42:37,075 INFO L430 AbstractCegarLoop]: === Iteration 271 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:37,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:37,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1434220106, now seen corresponding path program 265 times [2021-06-05 00:42:37,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:37,076 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652559460] [2021-06-05 00:42:37,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:37,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:37,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:37,385 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:37,385 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652559460] [2021-06-05 00:42:37,385 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652559460] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:37,385 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:37,385 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:37,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126693566] [2021-06-05 00:42:37,385 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:37,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:37,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:37,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:37,386 INFO L87 Difference]: Start difference. First operand 5838 states and 15546 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:38,089 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:42:38,247 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:42:38,403 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:42:38,581 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:42:38,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:38,709 INFO L93 Difference]: Finished difference Result 12448 states and 32561 transitions. [2021-06-05 00:42:38,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:38,709 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:38,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:38,720 INFO L225 Difference]: With dead ends: 12448 [2021-06-05 00:42:38,720 INFO L226 Difference]: Without dead ends: 12448 [2021-06-05 00:42:38,720 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1225.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:38,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12448 states. [2021-06-05 00:42:38,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12448 to 5854. [2021-06-05 00:42:38,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5854 states, 5852 states have (on average 2.664388243335612) internal successors, (15592), 5853 states have internal predecessors, (15592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:38,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5854 states to 5854 states and 15592 transitions. [2021-06-05 00:42:38,805 INFO L78 Accepts]: Start accepts. Automaton has 5854 states and 15592 transitions. Word has length 114 [2021-06-05 00:42:38,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:38,805 INFO L482 AbstractCegarLoop]: Abstraction has 5854 states and 15592 transitions. [2021-06-05 00:42:38,806 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:38,806 INFO L276 IsEmpty]: Start isEmpty. Operand 5854 states and 15592 transitions. [2021-06-05 00:42:38,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:38,810 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:38,810 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:38,810 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2021-06-05 00:42:38,810 INFO L430 AbstractCegarLoop]: === Iteration 272 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:38,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:38,810 INFO L82 PathProgramCache]: Analyzing trace with hash -725272568, now seen corresponding path program 266 times [2021-06-05 00:42:38,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:38,810 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306098685] [2021-06-05 00:42:38,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:38,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:39,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:39,119 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:39,119 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306098685] [2021-06-05 00:42:39,119 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306098685] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:39,119 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:39,119 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:39,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093330420] [2021-06-05 00:42:39,119 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:39,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:39,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:39,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:39,119 INFO L87 Difference]: Start difference. First operand 5854 states and 15592 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:39,802 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:42:39,957 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:42:40,125 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:42:40,299 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:42:40,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:40,433 INFO L93 Difference]: Finished difference Result 11832 states and 30587 transitions. [2021-06-05 00:42:40,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:40,433 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:40,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:40,442 INFO L225 Difference]: With dead ends: 11832 [2021-06-05 00:42:40,442 INFO L226 Difference]: Without dead ends: 11832 [2021-06-05 00:42:40,443 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1227.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:40,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11832 states. [2021-06-05 00:42:40,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11832 to 5806. [2021-06-05 00:42:40,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5806 states, 5804 states have (on average 2.662646450723639) internal successors, (15454), 5805 states have internal predecessors, (15454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:40,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5806 states to 5806 states and 15454 transitions. [2021-06-05 00:42:40,520 INFO L78 Accepts]: Start accepts. Automaton has 5806 states and 15454 transitions. Word has length 114 [2021-06-05 00:42:40,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:40,520 INFO L482 AbstractCegarLoop]: Abstraction has 5806 states and 15454 transitions. [2021-06-05 00:42:40,520 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:40,520 INFO L276 IsEmpty]: Start isEmpty. Operand 5806 states and 15454 transitions. [2021-06-05 00:42:40,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:40,524 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:40,524 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:40,524 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2021-06-05 00:42:40,524 INFO L430 AbstractCegarLoop]: === Iteration 273 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:40,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:40,524 INFO L82 PathProgramCache]: Analyzing trace with hash -857833944, now seen corresponding path program 267 times [2021-06-05 00:42:40,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:40,524 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615682588] [2021-06-05 00:42:40,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:40,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:40,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:40,833 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:40,833 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615682588] [2021-06-05 00:42:40,833 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615682588] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:40,833 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:40,833 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:40,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161937621] [2021-06-05 00:42:40,833 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:40,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:40,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:40,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:40,833 INFO L87 Difference]: Start difference. First operand 5806 states and 15454 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:41,662 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:42:41,838 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:42:42,018 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:42:42,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:42,141 INFO L93 Difference]: Finished difference Result 8592 states and 22340 transitions. [2021-06-05 00:42:42,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:42,141 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:42,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:42,148 INFO L225 Difference]: With dead ends: 8592 [2021-06-05 00:42:42,148 INFO L226 Difference]: Without dead ends: 8592 [2021-06-05 00:42:42,148 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1203.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:42,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8592 states. [2021-06-05 00:42:42,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8592 to 5682. [2021-06-05 00:42:42,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5682 states, 5680 states have (on average 2.6580985915492956) internal successors, (15098), 5681 states have internal predecessors, (15098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:42,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5682 states to 5682 states and 15098 transitions. [2021-06-05 00:42:42,223 INFO L78 Accepts]: Start accepts. Automaton has 5682 states and 15098 transitions. Word has length 114 [2021-06-05 00:42:42,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:42,223 INFO L482 AbstractCegarLoop]: Abstraction has 5682 states and 15098 transitions. [2021-06-05 00:42:42,223 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:42,224 INFO L276 IsEmpty]: Start isEmpty. Operand 5682 states and 15098 transitions. [2021-06-05 00:42:42,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:42,228 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:42,228 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:42,228 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2021-06-05 00:42:42,228 INFO L430 AbstractCegarLoop]: === Iteration 274 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:42,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:42,229 INFO L82 PathProgramCache]: Analyzing trace with hash 453682248, now seen corresponding path program 268 times [2021-06-05 00:42:42,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:42,229 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704534162] [2021-06-05 00:42:42,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:42,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:42,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:42,529 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:42,529 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704534162] [2021-06-05 00:42:42,529 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704534162] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:42,529 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:42,529 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:42,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756522127] [2021-06-05 00:42:42,529 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:42,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:42,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:42,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:42,530 INFO L87 Difference]: Start difference. First operand 5682 states and 15098 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:43,261 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:42:43,398 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:42:43,572 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:42:43,755 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:42:43,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:43,895 INFO L93 Difference]: Finished difference Result 13092 states and 33832 transitions. [2021-06-05 00:42:43,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:43,895 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:43,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:43,906 INFO L225 Difference]: With dead ends: 13092 [2021-06-05 00:42:43,906 INFO L226 Difference]: Without dead ends: 13092 [2021-06-05 00:42:43,907 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1223.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:43,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13092 states. [2021-06-05 00:42:43,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13092 to 5810. [2021-06-05 00:42:43,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.662878787878788) internal successors, (15466), 5809 states have internal predecessors, (15466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:43,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15466 transitions. [2021-06-05 00:42:43,996 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15466 transitions. Word has length 114 [2021-06-05 00:42:43,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:43,996 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15466 transitions. [2021-06-05 00:42:43,996 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:43,996 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15466 transitions. [2021-06-05 00:42:44,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:44,000 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:44,000 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:44,000 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2021-06-05 00:42:44,000 INFO L430 AbstractCegarLoop]: === Iteration 275 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:44,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:44,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1928048312, now seen corresponding path program 269 times [2021-06-05 00:42:44,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:44,001 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841485800] [2021-06-05 00:42:44,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:44,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:44,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:44,294 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:44,294 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841485800] [2021-06-05 00:42:44,294 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841485800] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:44,294 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:44,294 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:44,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858472338] [2021-06-05 00:42:44,294 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:44,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:44,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:44,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:44,295 INFO L87 Difference]: Start difference. First operand 5810 states and 15466 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:45,011 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:42:45,175 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:42:45,340 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:42:45,528 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:42:45,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:45,673 INFO L93 Difference]: Finished difference Result 15716 states and 40555 transitions. [2021-06-05 00:42:45,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:45,674 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:45,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:45,688 INFO L225 Difference]: With dead ends: 15716 [2021-06-05 00:42:45,688 INFO L226 Difference]: Without dead ends: 15716 [2021-06-05 00:42:45,688 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1226.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:45,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15716 states. [2021-06-05 00:42:45,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15716 to 5826. [2021-06-05 00:42:45,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5826 states, 5824 states have (on average 2.6634615384615383) internal successors, (15512), 5825 states have internal predecessors, (15512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:45,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5826 states to 5826 states and 15512 transitions. [2021-06-05 00:42:45,813 INFO L78 Accepts]: Start accepts. Automaton has 5826 states and 15512 transitions. Word has length 114 [2021-06-05 00:42:45,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:45,813 INFO L482 AbstractCegarLoop]: Abstraction has 5826 states and 15512 transitions. [2021-06-05 00:42:45,813 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:45,813 INFO L276 IsEmpty]: Start isEmpty. Operand 5826 states and 15512 transitions. [2021-06-05 00:42:45,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:45,818 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:45,818 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:45,818 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2021-06-05 00:42:45,818 INFO L430 AbstractCegarLoop]: === Iteration 276 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:45,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:45,818 INFO L82 PathProgramCache]: Analyzing trace with hash 207426310, now seen corresponding path program 270 times [2021-06-05 00:42:45,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:45,818 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643821998] [2021-06-05 00:42:45,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:45,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:46,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:46,114 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:46,114 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643821998] [2021-06-05 00:42:46,114 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643821998] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:46,114 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:46,114 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:46,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314193411] [2021-06-05 00:42:46,114 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:46,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:46,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:46,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:46,115 INFO L87 Difference]: Start difference. First operand 5826 states and 15512 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:46,833 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:42:46,993 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:42:47,165 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:42:47,348 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:42:47,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:47,494 INFO L93 Difference]: Finished difference Result 13996 states and 35843 transitions. [2021-06-05 00:42:47,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:47,494 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:47,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:47,507 INFO L225 Difference]: With dead ends: 13996 [2021-06-05 00:42:47,507 INFO L226 Difference]: Without dead ends: 13996 [2021-06-05 00:42:47,507 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1225.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:47,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13996 states. [2021-06-05 00:42:47,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13996 to 5778. [2021-06-05 00:42:47,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5778 states, 5776 states have (on average 2.6617036011080333) internal successors, (15374), 5777 states have internal predecessors, (15374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:47,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5778 states to 5778 states and 15374 transitions. [2021-06-05 00:42:47,601 INFO L78 Accepts]: Start accepts. Automaton has 5778 states and 15374 transitions. Word has length 114 [2021-06-05 00:42:47,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:47,601 INFO L482 AbstractCegarLoop]: Abstraction has 5778 states and 15374 transitions. [2021-06-05 00:42:47,601 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:47,602 INFO L276 IsEmpty]: Start isEmpty. Operand 5778 states and 15374 transitions. [2021-06-05 00:42:47,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:47,606 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:47,606 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:47,606 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2021-06-05 00:42:47,606 INFO L430 AbstractCegarLoop]: === Iteration 277 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:47,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:47,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1606301688, now seen corresponding path program 271 times [2021-06-05 00:42:47,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:47,606 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053539690] [2021-06-05 00:42:47,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:47,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:47,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:47,887 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:47,887 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053539690] [2021-06-05 00:42:47,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053539690] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:47,887 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:47,887 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:47,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282090502] [2021-06-05 00:42:47,888 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:47,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:47,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:47,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:47,888 INFO L87 Difference]: Start difference. First operand 5778 states and 15374 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:48,627 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:42:48,773 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:42:48,934 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:42:49,115 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:42:49,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:49,267 INFO L93 Difference]: Finished difference Result 17072 states and 43772 transitions. [2021-06-05 00:42:49,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:49,267 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:49,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:49,282 INFO L225 Difference]: With dead ends: 17072 [2021-06-05 00:42:49,282 INFO L226 Difference]: Without dead ends: 17072 [2021-06-05 00:42:49,282 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1216.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:49,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17072 states. [2021-06-05 00:42:49,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17072 to 5810. [2021-06-05 00:42:49,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.662878787878788) internal successors, (15466), 5809 states have internal predecessors, (15466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:49,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15466 transitions. [2021-06-05 00:42:49,394 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15466 transitions. Word has length 114 [2021-06-05 00:42:49,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:49,394 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15466 transitions. [2021-06-05 00:42:49,394 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:49,394 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15466 transitions. [2021-06-05 00:42:49,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:49,398 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:49,398 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:49,398 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2021-06-05 00:42:49,398 INFO L430 AbstractCegarLoop]: === Iteration 278 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:49,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:49,398 INFO L82 PathProgramCache]: Analyzing trace with hash 529172934, now seen corresponding path program 272 times [2021-06-05 00:42:49,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:49,399 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112845734] [2021-06-05 00:42:49,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:49,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:49,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:49,681 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:49,681 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112845734] [2021-06-05 00:42:49,681 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112845734] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:49,681 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:49,682 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:49,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248166430] [2021-06-05 00:42:49,682 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:49,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:49,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:49,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:49,682 INFO L87 Difference]: Start difference. First operand 5810 states and 15466 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:50,374 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:42:50,516 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:42:50,686 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:42:50,858 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:42:50,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:50,999 INFO L93 Difference]: Finished difference Result 17918 states and 45632 transitions. [2021-06-05 00:42:50,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:50,999 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:51,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:51,014 INFO L225 Difference]: With dead ends: 17918 [2021-06-05 00:42:51,015 INFO L226 Difference]: Without dead ends: 17918 [2021-06-05 00:42:51,016 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1203.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:51,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17918 states. [2021-06-05 00:42:51,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17918 to 5794. [2021-06-05 00:42:51,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5794 states, 5792 states have (on average 2.662292817679558) internal successors, (15420), 5793 states have internal predecessors, (15420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:51,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5794 states to 5794 states and 15420 transitions. [2021-06-05 00:42:51,162 INFO L78 Accepts]: Start accepts. Automaton has 5794 states and 15420 transitions. Word has length 114 [2021-06-05 00:42:51,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:51,163 INFO L482 AbstractCegarLoop]: Abstraction has 5794 states and 15420 transitions. [2021-06-05 00:42:51,163 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:51,163 INFO L276 IsEmpty]: Start isEmpty. Operand 5794 states and 15420 transitions. [2021-06-05 00:42:51,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:51,166 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:51,166 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:51,166 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2021-06-05 00:42:51,167 INFO L430 AbstractCegarLoop]: === Iteration 279 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:51,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:51,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1327036394, now seen corresponding path program 273 times [2021-06-05 00:42:51,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:51,167 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897641694] [2021-06-05 00:42:51,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:51,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:51,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:51,447 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:51,447 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897641694] [2021-06-05 00:42:51,447 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897641694] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:51,448 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:51,448 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:51,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694526156] [2021-06-05 00:42:51,448 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:51,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:51,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:51,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:51,448 INFO L87 Difference]: Start difference. First operand 5794 states and 15420 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:52,161 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:42:52,308 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:42:52,477 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:42:52,660 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:42:52,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:52,814 INFO L93 Difference]: Finished difference Result 17218 states and 44003 transitions. [2021-06-05 00:42:52,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:52,814 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:52,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:52,830 INFO L225 Difference]: With dead ends: 17218 [2021-06-05 00:42:52,830 INFO L226 Difference]: Without dead ends: 17218 [2021-06-05 00:42:52,830 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1207.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:52,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17218 states. [2021-06-05 00:42:52,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17218 to 5810. [2021-06-05 00:42:52,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.662878787878788) internal successors, (15466), 5809 states have internal predecessors, (15466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:52,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15466 transitions. [2021-06-05 00:42:52,935 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15466 transitions. Word has length 114 [2021-06-05 00:42:52,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:52,935 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15466 transitions. [2021-06-05 00:42:52,935 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:52,935 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15466 transitions. [2021-06-05 00:42:52,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:52,939 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:52,939 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:52,939 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2021-06-05 00:42:52,939 INFO L430 AbstractCegarLoop]: === Iteration 280 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:52,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:52,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1078489414, now seen corresponding path program 274 times [2021-06-05 00:42:52,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:52,939 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544231268] [2021-06-05 00:42:52,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:52,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:53,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:53,214 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:53,214 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544231268] [2021-06-05 00:42:53,214 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544231268] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:53,214 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:53,214 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:53,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053453962] [2021-06-05 00:42:53,214 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:53,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:53,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:53,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:53,215 INFO L87 Difference]: Start difference. First operand 5810 states and 15466 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:53,923 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:42:54,068 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:42:54,224 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:42:54,399 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:42:54,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:54,513 INFO L93 Difference]: Finished difference Result 14176 states and 36341 transitions. [2021-06-05 00:42:54,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:54,514 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:54,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:54,525 INFO L225 Difference]: With dead ends: 14176 [2021-06-05 00:42:54,525 INFO L226 Difference]: Without dead ends: 14176 [2021-06-05 00:42:54,525 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1188.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:54,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14176 states. [2021-06-05 00:42:54,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14176 to 5746. [2021-06-05 00:42:54,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5746 states, 5744 states have (on average 2.660515320334262) internal successors, (15282), 5745 states have internal predecessors, (15282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:54,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5746 states to 5746 states and 15282 transitions. [2021-06-05 00:42:54,619 INFO L78 Accepts]: Start accepts. Automaton has 5746 states and 15282 transitions. Word has length 114 [2021-06-05 00:42:54,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:54,619 INFO L482 AbstractCegarLoop]: Abstraction has 5746 states and 15282 transitions. [2021-06-05 00:42:54,619 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:54,619 INFO L276 IsEmpty]: Start isEmpty. Operand 5746 states and 15282 transitions. [2021-06-05 00:42:54,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:54,623 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:54,623 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:54,623 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2021-06-05 00:42:54,623 INFO L430 AbstractCegarLoop]: === Iteration 281 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:54,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:54,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1741503862, now seen corresponding path program 275 times [2021-06-05 00:42:54,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:54,623 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629555982] [2021-06-05 00:42:54,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:54,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:54,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:54,902 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:54,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629555982] [2021-06-05 00:42:54,902 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629555982] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:54,902 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:54,902 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:54,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255136754] [2021-06-05 00:42:54,903 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:54,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:54,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:54,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:54,903 INFO L87 Difference]: Start difference. First operand 5746 states and 15282 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:55,628 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:42:55,774 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:42:55,934 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:42:56,112 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:42:56,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:56,244 INFO L93 Difference]: Finished difference Result 12652 states and 32606 transitions. [2021-06-05 00:42:56,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:56,245 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:56,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:56,255 INFO L225 Difference]: With dead ends: 12652 [2021-06-05 00:42:56,255 INFO L226 Difference]: Without dead ends: 12652 [2021-06-05 00:42:56,255 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1200.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:56,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12652 states. [2021-06-05 00:42:56,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12652 to 5810. [2021-06-05 00:42:56,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.662878787878788) internal successors, (15466), 5809 states have internal predecessors, (15466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:56,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15466 transitions. [2021-06-05 00:42:56,340 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15466 transitions. Word has length 114 [2021-06-05 00:42:56,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:56,340 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15466 transitions. [2021-06-05 00:42:56,340 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:56,340 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15466 transitions. [2021-06-05 00:42:56,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:56,344 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:56,344 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:56,344 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2021-06-05 00:42:56,344 INFO L430 AbstractCegarLoop]: === Iteration 282 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:56,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:56,344 INFO L82 PathProgramCache]: Analyzing trace with hash 393970760, now seen corresponding path program 276 times [2021-06-05 00:42:56,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:56,344 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78723348] [2021-06-05 00:42:56,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:56,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:56,652 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:56,652 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78723348] [2021-06-05 00:42:56,652 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78723348] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:56,652 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:56,652 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:56,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500942322] [2021-06-05 00:42:56,652 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:56,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:56,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:56,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:56,653 INFO L87 Difference]: Start difference. First operand 5810 states and 15466 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:57,348 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:42:57,490 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:42:57,659 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:42:57,833 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:42:57,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:57,958 INFO L93 Difference]: Finished difference Result 13498 states and 34466 transitions. [2021-06-05 00:42:57,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:57,958 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:57,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:57,969 INFO L225 Difference]: With dead ends: 13498 [2021-06-05 00:42:57,970 INFO L226 Difference]: Without dead ends: 13498 [2021-06-05 00:42:57,970 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1207.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:57,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13498 states. [2021-06-05 00:42:58,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13498 to 5794. [2021-06-05 00:42:58,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5794 states, 5792 states have (on average 2.662292817679558) internal successors, (15420), 5793 states have internal predecessors, (15420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:58,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5794 states to 5794 states and 15420 transitions. [2021-06-05 00:42:58,058 INFO L78 Accepts]: Start accepts. Automaton has 5794 states and 15420 transitions. Word has length 114 [2021-06-05 00:42:58,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:58,058 INFO L482 AbstractCegarLoop]: Abstraction has 5794 states and 15420 transitions. [2021-06-05 00:42:58,058 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:58,058 INFO L276 IsEmpty]: Start isEmpty. Operand 5794 states and 15420 transitions. [2021-06-05 00:42:58,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:58,062 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:58,063 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:58,063 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2021-06-05 00:42:58,063 INFO L430 AbstractCegarLoop]: === Iteration 283 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:58,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:58,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1191834220, now seen corresponding path program 277 times [2021-06-05 00:42:58,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:58,063 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103690713] [2021-06-05 00:42:58,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:58,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:58,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:58,343 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:58,343 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103690713] [2021-06-05 00:42:58,343 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103690713] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:58,343 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:58,343 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:42:58,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4004276] [2021-06-05 00:42:58,344 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:42:58,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:58,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:42:58,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:42:58,344 INFO L87 Difference]: Start difference. First operand 5794 states and 15420 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:59,041 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:42:59,183 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:42:59,361 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:42:59,533 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:42:59,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:59,665 INFO L93 Difference]: Finished difference Result 16704 states and 42580 transitions. [2021-06-05 00:42:59,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:42:59,666 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:42:59,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:59,679 INFO L225 Difference]: With dead ends: 16704 [2021-06-05 00:42:59,679 INFO L226 Difference]: Without dead ends: 16704 [2021-06-05 00:42:59,679 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1204.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:42:59,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16704 states. [2021-06-05 00:42:59,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16704 to 5810. [2021-06-05 00:42:59,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.662878787878788) internal successors, (15466), 5809 states have internal predecessors, (15466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:59,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15466 transitions. [2021-06-05 00:42:59,779 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15466 transitions. Word has length 114 [2021-06-05 00:42:59,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:59,780 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15466 transitions. [2021-06-05 00:42:59,780 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:59,780 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15466 transitions. [2021-06-05 00:42:59,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:42:59,783 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:59,784 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:59,784 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2021-06-05 00:42:59,784 INFO L430 AbstractCegarLoop]: === Iteration 284 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:59,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:59,784 INFO L82 PathProgramCache]: Analyzing trace with hash 943287240, now seen corresponding path program 278 times [2021-06-05 00:42:59,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:59,784 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060086372] [2021-06-05 00:42:59,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:00,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:00,057 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:00,057 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060086372] [2021-06-05 00:43:00,057 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060086372] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:00,057 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:00,057 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:00,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346525195] [2021-06-05 00:43:00,057 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:00,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:00,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:00,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:00,058 INFO L87 Difference]: Start difference. First operand 5810 states and 15466 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:00,748 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:43:00,890 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:43:01,045 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:43:01,219 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:43:01,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:01,334 INFO L93 Difference]: Finished difference Result 13662 states and 34918 transitions. [2021-06-05 00:43:01,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:01,335 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:01,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:01,345 INFO L225 Difference]: With dead ends: 13662 [2021-06-05 00:43:01,346 INFO L226 Difference]: Without dead ends: 13662 [2021-06-05 00:43:01,346 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1182.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:01,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13662 states. [2021-06-05 00:43:01,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13662 to 5778. [2021-06-05 00:43:01,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5778 states, 5776 states have (on average 2.6617036011080333) internal successors, (15374), 5777 states have internal predecessors, (15374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:01,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5778 states to 5778 states and 15374 transitions. [2021-06-05 00:43:01,432 INFO L78 Accepts]: Start accepts. Automaton has 5778 states and 15374 transitions. Word has length 114 [2021-06-05 00:43:01,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:01,432 INFO L482 AbstractCegarLoop]: Abstraction has 5778 states and 15374 transitions. [2021-06-05 00:43:01,432 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:01,432 INFO L276 IsEmpty]: Start isEmpty. Operand 5778 states and 15374 transitions. [2021-06-05 00:43:01,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:01,436 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:01,436 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:01,436 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2021-06-05 00:43:01,436 INFO L430 AbstractCegarLoop]: === Iteration 285 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:01,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:01,436 INFO L82 PathProgramCache]: Analyzing trace with hash -76983066, now seen corresponding path program 279 times [2021-06-05 00:43:01,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:01,436 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205559598] [2021-06-05 00:43:01,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:01,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:01,752 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:01,752 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205559598] [2021-06-05 00:43:01,752 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205559598] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:01,753 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:01,753 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:01,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144557787] [2021-06-05 00:43:01,753 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:01,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:01,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:01,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:01,753 INFO L87 Difference]: Start difference. First operand 5778 states and 15374 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:02,455 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:43:02,612 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:43:02,782 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:43:02,962 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:43:03,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:03,098 INFO L93 Difference]: Finished difference Result 12782 states and 32791 transitions. [2021-06-05 00:43:03,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:03,099 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:03,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:03,109 INFO L225 Difference]: With dead ends: 12782 [2021-06-05 00:43:03,109 INFO L226 Difference]: Without dead ends: 12782 [2021-06-05 00:43:03,109 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1238.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:03,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12782 states. [2021-06-05 00:43:03,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12782 to 5826. [2021-06-05 00:43:03,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5826 states, 5824 states have (on average 2.6634615384615383) internal successors, (15512), 5825 states have internal predecessors, (15512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:03,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5826 states to 5826 states and 15512 transitions. [2021-06-05 00:43:03,194 INFO L78 Accepts]: Start accepts. Automaton has 5826 states and 15512 transitions. Word has length 114 [2021-06-05 00:43:03,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:03,194 INFO L482 AbstractCegarLoop]: Abstraction has 5826 states and 15512 transitions. [2021-06-05 00:43:03,194 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:03,194 INFO L276 IsEmpty]: Start isEmpty. Operand 5826 states and 15512 transitions. [2021-06-05 00:43:03,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:03,198 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:03,198 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:03,198 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2021-06-05 00:43:03,198 INFO L430 AbstractCegarLoop]: === Iteration 286 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:03,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:03,198 INFO L82 PathProgramCache]: Analyzing trace with hash -325530046, now seen corresponding path program 280 times [2021-06-05 00:43:03,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:03,199 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520940283] [2021-06-05 00:43:03,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:03,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:03,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:03,487 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:03,487 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520940283] [2021-06-05 00:43:03,488 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520940283] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:03,488 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:03,488 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:03,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807380688] [2021-06-05 00:43:03,488 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:03,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:03,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:03,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:03,488 INFO L87 Difference]: Start difference. First operand 5826 states and 15512 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:04,181 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:43:04,334 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:43:04,492 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:43:04,688 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:43:04,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:04,801 INFO L93 Difference]: Finished difference Result 12618 states and 32389 transitions. [2021-06-05 00:43:04,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:04,802 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:04,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:04,812 INFO L225 Difference]: With dead ends: 12618 [2021-06-05 00:43:04,812 INFO L226 Difference]: Without dead ends: 12618 [2021-06-05 00:43:04,812 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1227.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:04,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12618 states. [2021-06-05 00:43:04,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12618 to 5810. [2021-06-05 00:43:04,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.662878787878788) internal successors, (15466), 5809 states have internal predecessors, (15466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:04,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15466 transitions. [2021-06-05 00:43:04,894 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15466 transitions. Word has length 114 [2021-06-05 00:43:04,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:04,895 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15466 transitions. [2021-06-05 00:43:04,895 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:04,895 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15466 transitions. [2021-06-05 00:43:04,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:04,899 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:04,899 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:04,899 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2021-06-05 00:43:04,899 INFO L430 AbstractCegarLoop]: === Iteration 287 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:04,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:04,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1482347350, now seen corresponding path program 281 times [2021-06-05 00:43:04,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:04,899 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401527187] [2021-06-05 00:43:04,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:05,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:05,190 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:05,190 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401527187] [2021-06-05 00:43:05,191 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401527187] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:05,191 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:05,191 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:05,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214469003] [2021-06-05 00:43:05,191 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:05,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:05,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:05,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:05,191 INFO L87 Difference]: Start difference. First operand 5810 states and 15466 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:05,888 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:43:06,024 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:43:06,193 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:43:06,379 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:43:06,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:06,505 INFO L93 Difference]: Finished difference Result 9676 states and 24961 transitions. [2021-06-05 00:43:06,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:06,505 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:06,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:06,512 INFO L225 Difference]: With dead ends: 9676 [2021-06-05 00:43:06,512 INFO L226 Difference]: Without dead ends: 9676 [2021-06-05 00:43:06,512 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1213.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:06,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9676 states. [2021-06-05 00:43:06,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9676 to 5650. [2021-06-05 00:43:06,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5650 states, 5648 states have (on average 2.656869688385269) internal successors, (15006), 5649 states have internal predecessors, (15006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:06,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5650 states to 5650 states and 15006 transitions. [2021-06-05 00:43:06,582 INFO L78 Accepts]: Start accepts. Automaton has 5650 states and 15006 transitions. Word has length 114 [2021-06-05 00:43:06,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:06,582 INFO L482 AbstractCegarLoop]: Abstraction has 5650 states and 15006 transitions. [2021-06-05 00:43:06,582 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:06,582 INFO L276 IsEmpty]: Start isEmpty. Operand 5650 states and 15006 transitions. [2021-06-05 00:43:06,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:06,586 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:06,586 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:06,586 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2021-06-05 00:43:06,586 INFO L430 AbstractCegarLoop]: === Iteration 288 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:06,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:06,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1750741542, now seen corresponding path program 282 times [2021-06-05 00:43:06,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:06,586 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893619865] [2021-06-05 00:43:06,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:06,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:06,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:06,888 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:06,888 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893619865] [2021-06-05 00:43:06,888 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893619865] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:06,888 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:06,888 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:06,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047632508] [2021-06-05 00:43:06,888 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:06,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:06,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:06,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:06,888 INFO L87 Difference]: Start difference. First operand 5650 states and 15006 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:07,610 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:43:07,744 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:43:07,914 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:43:08,095 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:43:08,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:08,228 INFO L93 Difference]: Finished difference Result 13716 states and 35578 transitions. [2021-06-05 00:43:08,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:08,228 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:08,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:08,239 INFO L225 Difference]: With dead ends: 13716 [2021-06-05 00:43:08,239 INFO L226 Difference]: Without dead ends: 13716 [2021-06-05 00:43:08,240 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1234.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:08,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13716 states. [2021-06-05 00:43:08,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13716 to 5810. [2021-06-05 00:43:08,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.662878787878788) internal successors, (15466), 5809 states have internal predecessors, (15466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:08,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15466 transitions. [2021-06-05 00:43:08,327 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15466 transitions. Word has length 114 [2021-06-05 00:43:08,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:08,327 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15466 transitions. [2021-06-05 00:43:08,327 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:08,327 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15466 transitions. [2021-06-05 00:43:08,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:08,331 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:08,331 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:08,331 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2021-06-05 00:43:08,331 INFO L430 AbstractCegarLoop]: === Iteration 289 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:08,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:08,331 INFO L82 PathProgramCache]: Analyzing trace with hash -630989018, now seen corresponding path program 283 times [2021-06-05 00:43:08,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:08,331 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241375043] [2021-06-05 00:43:08,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:08,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:08,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:08,623 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:08,623 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241375043] [2021-06-05 00:43:08,623 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241375043] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:08,623 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:08,623 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:08,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698366322] [2021-06-05 00:43:08,623 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:08,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:08,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:08,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:08,624 INFO L87 Difference]: Start difference. First operand 5810 states and 15466 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:09,341 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:43:09,502 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:43:09,660 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:43:09,843 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:43:09,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:09,987 INFO L93 Difference]: Finished difference Result 16340 states and 42301 transitions. [2021-06-05 00:43:09,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:09,987 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:09,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:10,001 INFO L225 Difference]: With dead ends: 16340 [2021-06-05 00:43:10,001 INFO L226 Difference]: Without dead ends: 16340 [2021-06-05 00:43:10,001 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1213.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:10,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16340 states. [2021-06-05 00:43:10,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16340 to 5826. [2021-06-05 00:43:10,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5826 states, 5824 states have (on average 2.6634615384615383) internal successors, (15512), 5825 states have internal predecessors, (15512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:10,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5826 states to 5826 states and 15512 transitions. [2021-06-05 00:43:10,116 INFO L78 Accepts]: Start accepts. Automaton has 5826 states and 15512 transitions. Word has length 114 [2021-06-05 00:43:10,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:10,116 INFO L482 AbstractCegarLoop]: Abstraction has 5826 states and 15512 transitions. [2021-06-05 00:43:10,116 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:10,116 INFO L276 IsEmpty]: Start isEmpty. Operand 5826 states and 15512 transitions. [2021-06-05 00:43:10,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:10,120 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:10,120 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:10,120 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2021-06-05 00:43:10,120 INFO L430 AbstractCegarLoop]: === Iteration 290 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:10,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:10,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1504485604, now seen corresponding path program 284 times [2021-06-05 00:43:10,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:10,121 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547549019] [2021-06-05 00:43:10,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:10,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:10,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:10,415 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:10,415 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547549019] [2021-06-05 00:43:10,415 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547549019] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:10,415 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:10,415 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:10,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112789852] [2021-06-05 00:43:10,415 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:10,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:10,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:10,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:10,415 INFO L87 Difference]: Start difference. First operand 5826 states and 15512 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:11,125 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:43:11,285 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:43:11,458 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:43:11,638 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:43:11,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:11,780 INFO L93 Difference]: Finished difference Result 14620 states and 37589 transitions. [2021-06-05 00:43:11,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:11,781 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:11,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:11,792 INFO L225 Difference]: With dead ends: 14620 [2021-06-05 00:43:11,793 INFO L226 Difference]: Without dead ends: 14620 [2021-06-05 00:43:11,793 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1214.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:11,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14620 states. [2021-06-05 00:43:11,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14620 to 5778. [2021-06-05 00:43:11,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5778 states, 5776 states have (on average 2.6617036011080333) internal successors, (15374), 5777 states have internal predecessors, (15374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:11,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5778 states to 5778 states and 15374 transitions. [2021-06-05 00:43:11,883 INFO L78 Accepts]: Start accepts. Automaton has 5778 states and 15374 transitions. Word has length 114 [2021-06-05 00:43:11,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:11,883 INFO L482 AbstractCegarLoop]: Abstraction has 5778 states and 15374 transitions. [2021-06-05 00:43:11,883 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:11,883 INFO L276 IsEmpty]: Start isEmpty. Operand 5778 states and 15374 transitions. [2021-06-05 00:43:11,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:11,887 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:11,887 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:11,887 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2021-06-05 00:43:11,887 INFO L430 AbstractCegarLoop]: === Iteration 291 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:11,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:11,888 INFO L82 PathProgramCache]: Analyzing trace with hash -309242394, now seen corresponding path program 285 times [2021-06-05 00:43:11,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:11,888 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108160728] [2021-06-05 00:43:11,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:12,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:12,165 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:12,165 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108160728] [2021-06-05 00:43:12,165 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108160728] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:12,165 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:12,165 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:12,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650196122] [2021-06-05 00:43:12,165 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:12,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:12,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:12,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:12,166 INFO L87 Difference]: Start difference. First operand 5778 states and 15374 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:12,884 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:43:13,028 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:43:13,184 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:43:13,361 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:43:13,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:13,502 INFO L93 Difference]: Finished difference Result 17696 states and 45518 transitions. [2021-06-05 00:43:13,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:13,502 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:13,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:13,517 INFO L225 Difference]: With dead ends: 17696 [2021-06-05 00:43:13,517 INFO L226 Difference]: Without dead ends: 17696 [2021-06-05 00:43:13,518 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1208.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:13,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17696 states. [2021-06-05 00:43:13,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17696 to 5810. [2021-06-05 00:43:13,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.662878787878788) internal successors, (15466), 5809 states have internal predecessors, (15466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:13,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15466 transitions. [2021-06-05 00:43:13,624 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15466 transitions. Word has length 114 [2021-06-05 00:43:13,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:13,624 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15466 transitions. [2021-06-05 00:43:13,624 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:13,624 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15466 transitions. [2021-06-05 00:43:13,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:13,628 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:13,628 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:13,628 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2021-06-05 00:43:13,628 INFO L430 AbstractCegarLoop]: === Iteration 292 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:13,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:13,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1826232228, now seen corresponding path program 286 times [2021-06-05 00:43:13,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:13,628 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469827597] [2021-06-05 00:43:13,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:13,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:13,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:13,912 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:13,912 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469827597] [2021-06-05 00:43:13,912 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469827597] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:13,912 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:13,912 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:13,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037732181] [2021-06-05 00:43:13,912 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:13,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:13,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:13,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:13,913 INFO L87 Difference]: Start difference. First operand 5810 states and 15466 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:14,615 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:43:14,757 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:43:14,926 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:43:15,100 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:43:15,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:15,243 INFO L93 Difference]: Finished difference Result 18542 states and 47378 transitions. [2021-06-05 00:43:15,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:15,243 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:15,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:15,259 INFO L225 Difference]: With dead ends: 18542 [2021-06-05 00:43:15,259 INFO L226 Difference]: Without dead ends: 18542 [2021-06-05 00:43:15,259 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1210.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:15,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18542 states. [2021-06-05 00:43:15,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18542 to 5794. [2021-06-05 00:43:15,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5794 states, 5792 states have (on average 2.662292817679558) internal successors, (15420), 5793 states have internal predecessors, (15420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:15,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5794 states to 5794 states and 15420 transitions. [2021-06-05 00:43:15,383 INFO L78 Accepts]: Start accepts. Automaton has 5794 states and 15420 transitions. Word has length 114 [2021-06-05 00:43:15,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:15,383 INFO L482 AbstractCegarLoop]: Abstraction has 5794 states and 15420 transitions. [2021-06-05 00:43:15,383 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:15,383 INFO L276 IsEmpty]: Start isEmpty. Operand 5794 states and 15420 transitions. [2021-06-05 00:43:15,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:15,387 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:15,387 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:15,388 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2021-06-05 00:43:15,388 INFO L430 AbstractCegarLoop]: === Iteration 293 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:15,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:15,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1670871608, now seen corresponding path program 287 times [2021-06-05 00:43:15,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:15,388 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814338332] [2021-06-05 00:43:15,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:15,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:15,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:15,669 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:15,669 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814338332] [2021-06-05 00:43:15,669 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814338332] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:15,669 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:15,670 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:15,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418013495] [2021-06-05 00:43:15,670 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:15,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:15,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:15,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:15,671 INFO L87 Difference]: Start difference. First operand 5794 states and 15420 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:16,369 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:43:16,511 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:43:16,676 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:43:16,850 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:43:16,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:16,991 INFO L93 Difference]: Finished difference Result 17842 states and 45749 transitions. [2021-06-05 00:43:16,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:16,991 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:16,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:17,006 INFO L225 Difference]: With dead ends: 17842 [2021-06-05 00:43:17,006 INFO L226 Difference]: Without dead ends: 17842 [2021-06-05 00:43:17,007 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1205.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:17,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17842 states. [2021-06-05 00:43:17,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17842 to 5810. [2021-06-05 00:43:17,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.662878787878788) internal successors, (15466), 5809 states have internal predecessors, (15466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:17,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15466 transitions. [2021-06-05 00:43:17,113 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15466 transitions. Word has length 114 [2021-06-05 00:43:17,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:17,113 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15466 transitions. [2021-06-05 00:43:17,113 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:17,113 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15466 transitions. [2021-06-05 00:43:17,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:17,117 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:17,117 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:17,117 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2021-06-05 00:43:17,117 INFO L430 AbstractCegarLoop]: === Iteration 294 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:17,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:17,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1919418588, now seen corresponding path program 288 times [2021-06-05 00:43:17,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:17,118 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099862671] [2021-06-05 00:43:17,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:17,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:17,396 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:17,396 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099862671] [2021-06-05 00:43:17,396 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099862671] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:17,396 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:17,396 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:17,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454270780] [2021-06-05 00:43:17,397 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:17,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:17,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:17,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:17,397 INFO L87 Difference]: Start difference. First operand 5810 states and 15466 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:17,988 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-06-05 00:43:18,131 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:43:18,278 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:43:18,435 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:43:18,613 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:43:18,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:18,739 INFO L93 Difference]: Finished difference Result 14800 states and 38087 transitions. [2021-06-05 00:43:18,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:18,739 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:18,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:18,751 INFO L225 Difference]: With dead ends: 14800 [2021-06-05 00:43:18,751 INFO L226 Difference]: Without dead ends: 14800 [2021-06-05 00:43:18,752 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1210.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:18,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14800 states. [2021-06-05 00:43:18,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14800 to 5746. [2021-06-05 00:43:18,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5746 states, 5744 states have (on average 2.660515320334262) internal successors, (15282), 5745 states have internal predecessors, (15282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:18,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5746 states to 5746 states and 15282 transitions. [2021-06-05 00:43:18,846 INFO L78 Accepts]: Start accepts. Automaton has 5746 states and 15282 transitions. Word has length 114 [2021-06-05 00:43:18,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:18,846 INFO L482 AbstractCegarLoop]: Abstraction has 5746 states and 15282 transitions. [2021-06-05 00:43:18,846 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:18,846 INFO L276 IsEmpty]: Start isEmpty. Operand 5746 states and 15282 transitions. [2021-06-05 00:43:18,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:18,850 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:18,850 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:18,850 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2021-06-05 00:43:18,850 INFO L430 AbstractCegarLoop]: === Iteration 295 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:18,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:18,850 INFO L82 PathProgramCache]: Analyzing trace with hash -444444568, now seen corresponding path program 289 times [2021-06-05 00:43:18,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:18,850 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035654130] [2021-06-05 00:43:18,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:18,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:19,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:19,130 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:19,130 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035654130] [2021-06-05 00:43:19,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035654130] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:19,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:19,130 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:19,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319404379] [2021-06-05 00:43:19,130 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:19,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:19,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:19,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:19,131 INFO L87 Difference]: Start difference. First operand 5746 states and 15282 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:19,837 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:43:19,981 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:43:20,138 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:43:20,315 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:43:20,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:20,459 INFO L93 Difference]: Finished difference Result 18224 states and 46988 transitions. [2021-06-05 00:43:20,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:20,459 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:20,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:20,476 INFO L225 Difference]: With dead ends: 18224 [2021-06-05 00:43:20,476 INFO L226 Difference]: Without dead ends: 18224 [2021-06-05 00:43:20,477 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1198.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:20,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18224 states. [2021-06-05 00:43:20,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18224 to 5810. [2021-06-05 00:43:20,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.662878787878788) internal successors, (15466), 5809 states have internal predecessors, (15466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:20,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15466 transitions. [2021-06-05 00:43:20,612 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15466 transitions. Word has length 114 [2021-06-05 00:43:20,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:20,613 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15466 transitions. [2021-06-05 00:43:20,613 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:20,613 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15466 transitions. [2021-06-05 00:43:20,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:20,617 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:20,617 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:20,617 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2021-06-05 00:43:20,617 INFO L430 AbstractCegarLoop]: === Iteration 296 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:20,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:20,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1691030054, now seen corresponding path program 290 times [2021-06-05 00:43:20,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:20,617 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624827100] [2021-06-05 00:43:20,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:20,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:20,902 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:20,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624827100] [2021-06-05 00:43:20,903 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624827100] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:20,903 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:20,903 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:20,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110266013] [2021-06-05 00:43:20,903 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:20,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:20,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:20,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:20,903 INFO L87 Difference]: Start difference. First operand 5810 states and 15466 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:21,601 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:43:21,743 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:43:21,913 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:43:22,085 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:43:22,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:22,227 INFO L93 Difference]: Finished difference Result 19070 states and 48848 transitions. [2021-06-05 00:43:22,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:22,228 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:22,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:22,244 INFO L225 Difference]: With dead ends: 19070 [2021-06-05 00:43:22,244 INFO L226 Difference]: Without dead ends: 19070 [2021-06-05 00:43:22,244 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1202.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:22,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19070 states. [2021-06-05 00:43:22,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19070 to 5794. [2021-06-05 00:43:22,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5794 states, 5792 states have (on average 2.662292817679558) internal successors, (15420), 5793 states have internal predecessors, (15420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:22,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5794 states to 5794 states and 15420 transitions. [2021-06-05 00:43:22,366 INFO L78 Accepts]: Start accepts. Automaton has 5794 states and 15420 transitions. Word has length 114 [2021-06-05 00:43:22,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:22,366 INFO L482 AbstractCegarLoop]: Abstraction has 5794 states and 15420 transitions. [2021-06-05 00:43:22,366 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:22,366 INFO L276 IsEmpty]: Start isEmpty. Operand 5794 states and 15420 transitions. [2021-06-05 00:43:22,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:22,370 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:22,370 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:22,371 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2021-06-05 00:43:22,371 INFO L430 AbstractCegarLoop]: === Iteration 297 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:22,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:22,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1806073782, now seen corresponding path program 291 times [2021-06-05 00:43:22,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:22,371 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601785732] [2021-06-05 00:43:22,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:22,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:22,655 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:22,655 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601785732] [2021-06-05 00:43:22,655 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601785732] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:22,655 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:22,655 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:22,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001255260] [2021-06-05 00:43:22,655 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:22,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:22,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:22,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:22,656 INFO L87 Difference]: Start difference. First operand 5794 states and 15420 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:23,234 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-06-05 00:43:23,373 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:43:23,517 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:43:23,686 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:43:23,876 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:43:24,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:24,032 INFO L93 Difference]: Finished difference Result 22276 states and 56962 transitions. [2021-06-05 00:43:24,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:24,032 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:24,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:24,052 INFO L225 Difference]: With dead ends: 22276 [2021-06-05 00:43:24,052 INFO L226 Difference]: Without dead ends: 22276 [2021-06-05 00:43:24,052 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1245.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:24,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22276 states. [2021-06-05 00:43:24,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22276 to 5810. [2021-06-05 00:43:24,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.662878787878788) internal successors, (15466), 5809 states have internal predecessors, (15466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:24,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15466 transitions. [2021-06-05 00:43:24,179 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15466 transitions. Word has length 114 [2021-06-05 00:43:24,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:24,179 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15466 transitions. [2021-06-05 00:43:24,180 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:24,180 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15466 transitions. [2021-06-05 00:43:24,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:24,184 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:24,184 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:24,184 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2021-06-05 00:43:24,184 INFO L430 AbstractCegarLoop]: === Iteration 298 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:24,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:24,184 INFO L82 PathProgramCache]: Analyzing trace with hash -2054620762, now seen corresponding path program 292 times [2021-06-05 00:43:24,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:24,184 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876721774] [2021-06-05 00:43:24,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:24,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:24,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:24,461 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:24,461 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876721774] [2021-06-05 00:43:24,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876721774] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:24,462 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:24,462 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:24,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029616878] [2021-06-05 00:43:24,462 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:24,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:24,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:24,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:24,462 INFO L87 Difference]: Start difference. First operand 5810 states and 15466 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:25,185 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:43:25,335 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:43:25,496 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:43:25,674 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:43:25,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:25,819 INFO L93 Difference]: Finished difference Result 19234 states and 49300 transitions. [2021-06-05 00:43:25,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:25,819 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:25,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:25,836 INFO L225 Difference]: With dead ends: 19234 [2021-06-05 00:43:25,836 INFO L226 Difference]: Without dead ends: 19234 [2021-06-05 00:43:25,836 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1200.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:25,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19234 states. [2021-06-05 00:43:25,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19234 to 5778. [2021-06-05 00:43:25,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5778 states, 5776 states have (on average 2.6617036011080333) internal successors, (15374), 5777 states have internal predecessors, (15374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:25,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5778 states to 5778 states and 15374 transitions. [2021-06-05 00:43:25,964 INFO L78 Accepts]: Start accepts. Automaton has 5778 states and 15374 transitions. Word has length 114 [2021-06-05 00:43:25,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:25,964 INFO L482 AbstractCegarLoop]: Abstraction has 5778 states and 15374 transitions. [2021-06-05 00:43:25,964 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:25,964 INFO L276 IsEmpty]: Start isEmpty. Operand 5778 states and 15374 transitions. [2021-06-05 00:43:25,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:25,968 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:25,968 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:25,968 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2021-06-05 00:43:25,969 INFO L430 AbstractCegarLoop]: === Iteration 299 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:25,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:25,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1220076228, now seen corresponding path program 293 times [2021-06-05 00:43:25,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:25,969 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942396014] [2021-06-05 00:43:25,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:26,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:26,260 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:26,260 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942396014] [2021-06-05 00:43:26,260 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942396014] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:26,260 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:26,260 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:26,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595467335] [2021-06-05 00:43:26,261 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:26,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:26,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:26,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:26,261 INFO L87 Difference]: Start difference. First operand 5778 states and 15374 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:26,970 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:43:27,128 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:43:27,302 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:43:27,485 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:43:27,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:27,640 INFO L93 Difference]: Finished difference Result 18354 states and 47173 transitions. [2021-06-05 00:43:27,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:27,640 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:27,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:27,656 INFO L225 Difference]: With dead ends: 18354 [2021-06-05 00:43:27,656 INFO L226 Difference]: Without dead ends: 18354 [2021-06-05 00:43:27,656 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1217.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:27,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18354 states. [2021-06-05 00:43:27,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18354 to 5826. [2021-06-05 00:43:27,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5826 states, 5824 states have (on average 2.6634615384615383) internal successors, (15512), 5825 states have internal predecessors, (15512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:27,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5826 states to 5826 states and 15512 transitions. [2021-06-05 00:43:27,766 INFO L78 Accepts]: Start accepts. Automaton has 5826 states and 15512 transitions. Word has length 114 [2021-06-05 00:43:27,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:27,766 INFO L482 AbstractCegarLoop]: Abstraction has 5826 states and 15512 transitions. [2021-06-05 00:43:27,766 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:27,766 INFO L276 IsEmpty]: Start isEmpty. Operand 5826 states and 15512 transitions. [2021-06-05 00:43:27,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:27,770 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:27,770 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:27,770 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2021-06-05 00:43:27,771 INFO L430 AbstractCegarLoop]: === Iteration 300 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:27,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:27,771 INFO L82 PathProgramCache]: Analyzing trace with hash 971529248, now seen corresponding path program 294 times [2021-06-05 00:43:27,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:27,771 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753738420] [2021-06-05 00:43:27,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:27,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:28,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:28,058 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:28,058 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753738420] [2021-06-05 00:43:28,058 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753738420] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:28,058 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:28,058 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:28,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179285218] [2021-06-05 00:43:28,059 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:28,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:28,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:28,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:28,059 INFO L87 Difference]: Start difference. First operand 5826 states and 15512 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:28,787 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:43:28,944 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:43:29,105 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:43:29,285 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:43:29,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:29,426 INFO L93 Difference]: Finished difference Result 18190 states and 46771 transitions. [2021-06-05 00:43:29,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:29,427 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:29,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:29,442 INFO L225 Difference]: With dead ends: 18190 [2021-06-05 00:43:29,442 INFO L226 Difference]: Without dead ends: 18190 [2021-06-05 00:43:29,442 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1205.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:29,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18190 states. [2021-06-05 00:43:29,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18190 to 5810. [2021-06-05 00:43:29,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.662878787878788) internal successors, (15466), 5809 states have internal predecessors, (15466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:29,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15466 transitions. [2021-06-05 00:43:29,555 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15466 transitions. Word has length 114 [2021-06-05 00:43:29,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:29,556 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15466 transitions. [2021-06-05 00:43:29,556 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:29,556 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15466 transitions. [2021-06-05 00:43:29,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:29,560 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:29,560 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:29,560 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2021-06-05 00:43:29,560 INFO L430 AbstractCegarLoop]: === Iteration 301 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:29,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:29,560 INFO L82 PathProgramCache]: Analyzing trace with hash -185288056, now seen corresponding path program 295 times [2021-06-05 00:43:29,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:29,560 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036967355] [2021-06-05 00:43:29,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:29,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:29,851 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:29,851 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036967355] [2021-06-05 00:43:29,851 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036967355] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:29,851 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:29,851 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:29,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301760779] [2021-06-05 00:43:29,851 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:29,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:29,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:29,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:29,852 INFO L87 Difference]: Start difference. First operand 5810 states and 15466 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:30,549 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:43:30,683 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:43:30,853 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:43:31,032 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:43:31,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:31,155 INFO L93 Difference]: Finished difference Result 15248 states and 39343 transitions. [2021-06-05 00:43:31,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:31,155 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:31,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:31,168 INFO L225 Difference]: With dead ends: 15248 [2021-06-05 00:43:31,168 INFO L226 Difference]: Without dead ends: 15248 [2021-06-05 00:43:31,168 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1198.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:31,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15248 states. [2021-06-05 00:43:31,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15248 to 5682. [2021-06-05 00:43:31,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5682 states, 5680 states have (on average 2.6580985915492956) internal successors, (15098), 5681 states have internal predecessors, (15098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:31,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5682 states to 5682 states and 15098 transitions. [2021-06-05 00:43:31,281 INFO L78 Accepts]: Start accepts. Automaton has 5682 states and 15098 transitions. Word has length 114 [2021-06-05 00:43:31,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:31,281 INFO L482 AbstractCegarLoop]: Abstraction has 5682 states and 15098 transitions. [2021-06-05 00:43:31,281 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:31,281 INFO L276 IsEmpty]: Start isEmpty. Operand 5682 states and 15098 transitions. [2021-06-05 00:43:31,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:31,285 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:31,286 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:31,286 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2021-06-05 00:43:31,286 INFO L430 AbstractCegarLoop]: === Iteration 302 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:31,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:31,286 INFO L82 PathProgramCache]: Analyzing trace with hash 2027216586, now seen corresponding path program 296 times [2021-06-05 00:43:31,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:31,286 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125761355] [2021-06-05 00:43:31,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:31,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:31,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:31,566 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:31,566 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125761355] [2021-06-05 00:43:31,566 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125761355] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:31,566 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:31,566 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:31,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370489755] [2021-06-05 00:43:31,567 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:31,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:31,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:31,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:31,567 INFO L87 Difference]: Start difference. First operand 5682 states and 15098 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:32,282 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:43:32,427 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:43:32,587 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:43:32,766 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:43:32,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:32,901 INFO L93 Difference]: Finished difference Result 13212 states and 34168 transitions. [2021-06-05 00:43:32,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:32,902 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:32,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:32,913 INFO L225 Difference]: With dead ends: 13212 [2021-06-05 00:43:32,913 INFO L226 Difference]: Without dead ends: 13212 [2021-06-05 00:43:32,913 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1196.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:32,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13212 states. [2021-06-05 00:43:32,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13212 to 5762. [2021-06-05 00:43:32,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5762 states, 5760 states have (on average 2.661111111111111) internal successors, (15328), 5761 states have internal predecessors, (15328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:32,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5762 states to 5762 states and 15328 transitions. [2021-06-05 00:43:32,998 INFO L78 Accepts]: Start accepts. Automaton has 5762 states and 15328 transitions. Word has length 114 [2021-06-05 00:43:32,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:32,999 INFO L482 AbstractCegarLoop]: Abstraction has 5762 states and 15328 transitions. [2021-06-05 00:43:32,999 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:32,999 INFO L276 IsEmpty]: Start isEmpty. Operand 5762 states and 15328 transitions. [2021-06-05 00:43:33,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:33,003 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:33,003 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:33,003 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2021-06-05 00:43:33,003 INFO L430 AbstractCegarLoop]: === Iteration 303 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:33,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:33,003 INFO L82 PathProgramCache]: Analyzing trace with hash -132276088, now seen corresponding path program 297 times [2021-06-05 00:43:33,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:33,003 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127680240] [2021-06-05 00:43:33,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:33,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:33,285 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:33,285 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127680240] [2021-06-05 00:43:33,285 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127680240] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:33,286 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:33,286 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:33,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629093928] [2021-06-05 00:43:33,286 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:33,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:33,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:33,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:33,286 INFO L87 Difference]: Start difference. First operand 5762 states and 15328 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:34,025 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:43:34,171 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:43:34,343 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:43:34,519 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:43:34,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:34,657 INFO L93 Difference]: Finished difference Result 14058 states and 36028 transitions. [2021-06-05 00:43:34,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:34,658 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:34,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:34,669 INFO L225 Difference]: With dead ends: 14058 [2021-06-05 00:43:34,670 INFO L226 Difference]: Without dead ends: 14058 [2021-06-05 00:43:34,670 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1227.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:34,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14058 states. [2021-06-05 00:43:34,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14058 to 5746. [2021-06-05 00:43:34,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5746 states, 5744 states have (on average 2.660515320334262) internal successors, (15282), 5745 states have internal predecessors, (15282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:34,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5746 states to 5746 states and 15282 transitions. [2021-06-05 00:43:34,769 INFO L78 Accepts]: Start accepts. Automaton has 5746 states and 15282 transitions. Word has length 114 [2021-06-05 00:43:34,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:34,769 INFO L482 AbstractCegarLoop]: Abstraction has 5746 states and 15282 transitions. [2021-06-05 00:43:34,769 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:34,769 INFO L276 IsEmpty]: Start isEmpty. Operand 5746 states and 15282 transitions. [2021-06-05 00:43:34,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:34,773 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:34,773 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:34,773 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2021-06-05 00:43:34,773 INFO L430 AbstractCegarLoop]: === Iteration 304 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:34,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:34,774 INFO L82 PathProgramCache]: Analyzing trace with hash 665587372, now seen corresponding path program 298 times [2021-06-05 00:43:34,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:34,774 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168684057] [2021-06-05 00:43:34,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:35,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:35,055 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:35,055 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168684057] [2021-06-05 00:43:35,055 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168684057] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:35,055 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:35,055 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:35,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120763525] [2021-06-05 00:43:35,056 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:35,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:35,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:35,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:35,056 INFO L87 Difference]: Start difference. First operand 5746 states and 15282 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:35,774 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:43:35,921 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:43:36,090 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:43:36,267 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:43:36,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:36,421 INFO L93 Difference]: Finished difference Result 17264 states and 44142 transitions. [2021-06-05 00:43:36,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:36,421 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:36,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:36,436 INFO L225 Difference]: With dead ends: 17264 [2021-06-05 00:43:36,436 INFO L226 Difference]: Without dead ends: 17264 [2021-06-05 00:43:36,437 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1208.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:36,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17264 states. [2021-06-05 00:43:36,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17264 to 5762. [2021-06-05 00:43:36,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5762 states, 5760 states have (on average 2.661111111111111) internal successors, (15328), 5761 states have internal predecessors, (15328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:36,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5762 states to 5762 states and 15328 transitions. [2021-06-05 00:43:36,543 INFO L78 Accepts]: Start accepts. Automaton has 5762 states and 15328 transitions. Word has length 114 [2021-06-05 00:43:36,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:36,543 INFO L482 AbstractCegarLoop]: Abstraction has 5762 states and 15328 transitions. [2021-06-05 00:43:36,543 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:36,543 INFO L276 IsEmpty]: Start isEmpty. Operand 5762 states and 15328 transitions. [2021-06-05 00:43:36,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:36,547 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:36,547 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:36,547 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2021-06-05 00:43:36,547 INFO L430 AbstractCegarLoop]: === Iteration 305 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:36,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:36,547 INFO L82 PathProgramCache]: Analyzing trace with hash 417040392, now seen corresponding path program 299 times [2021-06-05 00:43:36,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:36,548 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710968659] [2021-06-05 00:43:36,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:36,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:36,858 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:36,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710968659] [2021-06-05 00:43:36,858 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710968659] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:36,858 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:36,858 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:36,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789427821] [2021-06-05 00:43:36,858 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:36,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:36,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:36,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:36,859 INFO L87 Difference]: Start difference. First operand 5762 states and 15328 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:37,588 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:43:37,734 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:43:37,895 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:43:38,077 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:43:38,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:38,206 INFO L93 Difference]: Finished difference Result 14222 states and 36480 transitions. [2021-06-05 00:43:38,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:38,206 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:38,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:38,218 INFO L225 Difference]: With dead ends: 14222 [2021-06-05 00:43:38,218 INFO L226 Difference]: Without dead ends: 14222 [2021-06-05 00:43:38,218 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1222.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:38,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14222 states. [2021-06-05 00:43:38,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14222 to 5730. [2021-06-05 00:43:38,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5730 states, 5728 states have (on average 2.6599162011173183) internal successors, (15236), 5729 states have internal predecessors, (15236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:38,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5730 states to 5730 states and 15236 transitions. [2021-06-05 00:43:38,307 INFO L78 Accepts]: Start accepts. Automaton has 5730 states and 15236 transitions. Word has length 114 [2021-06-05 00:43:38,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:38,307 INFO L482 AbstractCegarLoop]: Abstraction has 5730 states and 15236 transitions. [2021-06-05 00:43:38,307 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:38,307 INFO L276 IsEmpty]: Start isEmpty. Operand 5730 states and 15236 transitions. [2021-06-05 00:43:38,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:38,311 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:38,311 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:38,311 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2021-06-05 00:43:38,311 INFO L430 AbstractCegarLoop]: === Iteration 306 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:38,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:38,312 INFO L82 PathProgramCache]: Analyzing trace with hash -603229914, now seen corresponding path program 300 times [2021-06-05 00:43:38,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:38,312 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992416057] [2021-06-05 00:43:38,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:38,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:38,603 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:38,603 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992416057] [2021-06-05 00:43:38,603 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992416057] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:38,604 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:38,604 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:38,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420171618] [2021-06-05 00:43:38,604 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:38,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:38,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:38,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:38,604 INFO L87 Difference]: Start difference. First operand 5730 states and 15236 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:39,298 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:43:39,468 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:43:39,637 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:43:39,815 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:43:39,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:39,955 INFO L93 Difference]: Finished difference Result 17744 states and 45474 transitions. [2021-06-05 00:43:39,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:39,955 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:39,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:39,970 INFO L225 Difference]: With dead ends: 17744 [2021-06-05 00:43:39,970 INFO L226 Difference]: Without dead ends: 17744 [2021-06-05 00:43:39,970 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1242.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:39,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17744 states. [2021-06-05 00:43:40,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17744 to 5778. [2021-06-05 00:43:40,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5778 states, 5776 states have (on average 2.6617036011080333) internal successors, (15374), 5777 states have internal predecessors, (15374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:40,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5778 states to 5778 states and 15374 transitions. [2021-06-05 00:43:40,076 INFO L78 Accepts]: Start accepts. Automaton has 5778 states and 15374 transitions. Word has length 114 [2021-06-05 00:43:40,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:40,076 INFO L482 AbstractCegarLoop]: Abstraction has 5778 states and 15374 transitions. [2021-06-05 00:43:40,076 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:40,076 INFO L276 IsEmpty]: Start isEmpty. Operand 5778 states and 15374 transitions. [2021-06-05 00:43:40,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:40,080 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:40,080 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:40,080 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2021-06-05 00:43:40,080 INFO L430 AbstractCegarLoop]: === Iteration 307 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:40,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:40,080 INFO L82 PathProgramCache]: Analyzing trace with hash -851776894, now seen corresponding path program 301 times [2021-06-05 00:43:40,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:40,080 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360580955] [2021-06-05 00:43:40,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:40,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:40,371 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:40,371 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360580955] [2021-06-05 00:43:40,371 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360580955] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:40,371 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:40,371 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:40,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424521201] [2021-06-05 00:43:40,372 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:40,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:40,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:40,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:40,372 INFO L87 Difference]: Start difference. First operand 5778 states and 15374 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:41,061 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:43:41,216 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:43:41,375 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:43:41,552 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:43:41,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:41,685 INFO L93 Difference]: Finished difference Result 17580 states and 45072 transitions. [2021-06-05 00:43:41,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:41,685 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:41,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:41,700 INFO L225 Difference]: With dead ends: 17580 [2021-06-05 00:43:41,700 INFO L226 Difference]: Without dead ends: 17580 [2021-06-05 00:43:41,700 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1209.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:41,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17580 states. [2021-06-05 00:43:41,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17580 to 5762. [2021-06-05 00:43:41,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5762 states, 5760 states have (on average 2.661111111111111) internal successors, (15328), 5761 states have internal predecessors, (15328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:41,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5762 states to 5762 states and 15328 transitions. [2021-06-05 00:43:41,803 INFO L78 Accepts]: Start accepts. Automaton has 5762 states and 15328 transitions. Word has length 114 [2021-06-05 00:43:41,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:41,803 INFO L482 AbstractCegarLoop]: Abstraction has 5762 states and 15328 transitions. [2021-06-05 00:43:41,804 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:41,804 INFO L276 IsEmpty]: Start isEmpty. Operand 5762 states and 15328 transitions. [2021-06-05 00:43:41,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:41,807 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:41,808 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:41,808 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2021-06-05 00:43:41,808 INFO L430 AbstractCegarLoop]: === Iteration 308 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:41,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:41,808 INFO L82 PathProgramCache]: Analyzing trace with hash -2008594198, now seen corresponding path program 302 times [2021-06-05 00:43:41,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:41,808 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049250836] [2021-06-05 00:43:41,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:42,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:42,125 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:42,125 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049250836] [2021-06-05 00:43:42,125 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049250836] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:42,125 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:42,125 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:42,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292199132] [2021-06-05 00:43:42,125 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:42,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:42,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:42,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:42,125 INFO L87 Difference]: Start difference. First operand 5762 states and 15328 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:42,832 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:43:42,967 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:43:43,143 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:43:43,324 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:43:43,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:43,456 INFO L93 Difference]: Finished difference Result 14638 states and 37644 transitions. [2021-06-05 00:43:43,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:43,456 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:43,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:43,468 INFO L225 Difference]: With dead ends: 14638 [2021-06-05 00:43:43,468 INFO L226 Difference]: Without dead ends: 14638 [2021-06-05 00:43:43,469 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1197.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:43,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14638 states. [2021-06-05 00:43:43,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14638 to 5698. [2021-06-05 00:43:43,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5698 states, 5696 states have (on average 2.658707865168539) internal successors, (15144), 5697 states have internal predecessors, (15144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:43,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5698 states to 5698 states and 15144 transitions. [2021-06-05 00:43:43,559 INFO L78 Accepts]: Start accepts. Automaton has 5698 states and 15144 transitions. Word has length 114 [2021-06-05 00:43:43,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:43,559 INFO L482 AbstractCegarLoop]: Abstraction has 5698 states and 15144 transitions. [2021-06-05 00:43:43,559 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:43,559 INFO L276 IsEmpty]: Start isEmpty. Operand 5698 states and 15144 transitions. [2021-06-05 00:43:43,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:43,563 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:43,563 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:43,563 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2021-06-05 00:43:43,563 INFO L430 AbstractCegarLoop]: === Iteration 309 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:43,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:43,564 INFO L82 PathProgramCache]: Analyzing trace with hash -198870332, now seen corresponding path program 303 times [2021-06-05 00:43:43,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:43,564 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150621769] [2021-06-05 00:43:43,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:43,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:43,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:43,871 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:43,871 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150621769] [2021-06-05 00:43:43,871 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150621769] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:43,871 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:43,871 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:43,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063821478] [2021-06-05 00:43:43,871 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:43,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:43,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:43,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:43,872 INFO L87 Difference]: Start difference. First operand 5698 states and 15144 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:44,575 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:43:44,747 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:43:44,918 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:43:45,098 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:43:45,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:45,233 INFO L93 Difference]: Finished difference Result 13310 states and 34261 transitions. [2021-06-05 00:43:45,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:45,233 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:45,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:45,243 INFO L225 Difference]: With dead ends: 13310 [2021-06-05 00:43:45,243 INFO L226 Difference]: Without dead ends: 13310 [2021-06-05 00:43:45,244 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1243.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:45,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13310 states. [2021-06-05 00:43:45,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13310 to 5762. [2021-06-05 00:43:45,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5762 states, 5760 states have (on average 2.661111111111111) internal successors, (15328), 5761 states have internal predecessors, (15328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:45,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5762 states to 5762 states and 15328 transitions. [2021-06-05 00:43:45,328 INFO L78 Accepts]: Start accepts. Automaton has 5762 states and 15328 transitions. Word has length 114 [2021-06-05 00:43:45,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:45,328 INFO L482 AbstractCegarLoop]: Abstraction has 5762 states and 15328 transitions. [2021-06-05 00:43:45,328 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:45,328 INFO L276 IsEmpty]: Start isEmpty. Operand 5762 states and 15328 transitions. [2021-06-05 00:43:45,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:45,332 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:45,332 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:45,332 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2021-06-05 00:43:45,332 INFO L430 AbstractCegarLoop]: === Iteration 310 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:45,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:45,333 INFO L82 PathProgramCache]: Analyzing trace with hash -447417312, now seen corresponding path program 304 times [2021-06-05 00:43:45,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:45,333 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666233419] [2021-06-05 00:43:45,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:45,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:45,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:45,631 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:45,631 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666233419] [2021-06-05 00:43:45,631 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666233419] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:45,631 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:45,631 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:45,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661938923] [2021-06-05 00:43:45,631 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:45,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:45,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:45,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:45,632 INFO L87 Difference]: Start difference. First operand 5762 states and 15328 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:46,335 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:43:46,493 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:43:46,655 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:43:46,835 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:43:46,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:46,959 INFO L93 Difference]: Finished difference Result 13146 states and 33859 transitions. [2021-06-05 00:43:46,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:46,960 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:46,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:46,970 INFO L225 Difference]: With dead ends: 13146 [2021-06-05 00:43:46,971 INFO L226 Difference]: Without dead ends: 13146 [2021-06-05 00:43:46,971 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1215.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:46,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13146 states. [2021-06-05 00:43:47,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13146 to 5746. [2021-06-05 00:43:47,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5746 states, 5744 states have (on average 2.660515320334262) internal successors, (15282), 5745 states have internal predecessors, (15282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:47,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5746 states to 5746 states and 15282 transitions. [2021-06-05 00:43:47,056 INFO L78 Accepts]: Start accepts. Automaton has 5746 states and 15282 transitions. Word has length 114 [2021-06-05 00:43:47,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:47,056 INFO L482 AbstractCegarLoop]: Abstraction has 5746 states and 15282 transitions. [2021-06-05 00:43:47,056 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:47,056 INFO L276 IsEmpty]: Start isEmpty. Operand 5746 states and 15282 transitions. [2021-06-05 00:43:47,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:47,060 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:47,060 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:47,060 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2021-06-05 00:43:47,060 INFO L430 AbstractCegarLoop]: === Iteration 311 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:47,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:47,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1604234616, now seen corresponding path program 305 times [2021-06-05 00:43:47,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:47,061 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298961717] [2021-06-05 00:43:47,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:47,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:47,390 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:47,390 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298961717] [2021-06-05 00:43:47,390 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298961717] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:47,390 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:47,390 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:47,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838438503] [2021-06-05 00:43:47,391 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:47,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:47,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:47,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:47,391 INFO L87 Difference]: Start difference. First operand 5746 states and 15282 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:48,078 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:43:48,211 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:43:48,385 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:43:48,569 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:43:48,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:48,692 INFO L93 Difference]: Finished difference Result 13434 states and 34687 transitions. [2021-06-05 00:43:48,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:48,693 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:48,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:48,704 INFO L225 Difference]: With dead ends: 13434 [2021-06-05 00:43:48,705 INFO L226 Difference]: Without dead ends: 13434 [2021-06-05 00:43:48,705 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1239.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:48,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13434 states. [2021-06-05 00:43:48,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13434 to 5714. [2021-06-05 00:43:48,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5714 states, 5712 states have (on average 2.659313725490196) internal successors, (15190), 5713 states have internal predecessors, (15190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:48,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5714 states to 5714 states and 15190 transitions. [2021-06-05 00:43:48,794 INFO L78 Accepts]: Start accepts. Automaton has 5714 states and 15190 transitions. Word has length 114 [2021-06-05 00:43:48,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:48,794 INFO L482 AbstractCegarLoop]: Abstraction has 5714 states and 15190 transitions. [2021-06-05 00:43:48,794 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:48,795 INFO L276 IsEmpty]: Start isEmpty. Operand 5714 states and 15190 transitions. [2021-06-05 00:43:48,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:48,798 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:48,799 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:48,799 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2021-06-05 00:43:48,799 INFO L430 AbstractCegarLoop]: === Iteration 312 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:48,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:48,799 INFO L82 PathProgramCache]: Analyzing trace with hash 103948522, now seen corresponding path program 306 times [2021-06-05 00:43:48,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:48,799 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095568799] [2021-06-05 00:43:48,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:48,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:49,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:49,109 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:49,109 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095568799] [2021-06-05 00:43:49,109 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095568799] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:49,110 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:49,110 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:49,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071501900] [2021-06-05 00:43:49,110 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:49,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:49,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:49,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:49,110 INFO L87 Difference]: Start difference. First operand 5714 states and 15190 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:49,922 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:43:50,093 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:43:50,286 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:43:50,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:50,394 INFO L93 Difference]: Finished difference Result 10076 states and 26095 transitions. [2021-06-05 00:43:50,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:50,394 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:50,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:50,401 INFO L225 Difference]: With dead ends: 10076 [2021-06-05 00:43:50,401 INFO L226 Difference]: Without dead ends: 10076 [2021-06-05 00:43:50,401 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1216.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:50,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10076 states. [2021-06-05 00:43:50,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10076 to 5634. [2021-06-05 00:43:50,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5634 states, 5632 states have (on average 2.65625) internal successors, (14960), 5633 states have internal predecessors, (14960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:50,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5634 states to 5634 states and 14960 transitions. [2021-06-05 00:43:50,474 INFO L78 Accepts]: Start accepts. Automaton has 5634 states and 14960 transitions. Word has length 114 [2021-06-05 00:43:50,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:50,474 INFO L482 AbstractCegarLoop]: Abstraction has 5634 states and 14960 transitions. [2021-06-05 00:43:50,474 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:50,474 INFO L276 IsEmpty]: Start isEmpty. Operand 5634 states and 14960 transitions. [2021-06-05 00:43:50,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:50,479 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:50,479 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:50,479 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2021-06-05 00:43:50,479 INFO L430 AbstractCegarLoop]: === Iteration 313 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:50,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:50,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1885867412, now seen corresponding path program 307 times [2021-06-05 00:43:50,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:50,479 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938678438] [2021-06-05 00:43:50,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:50,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:50,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:50,773 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:50,773 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938678438] [2021-06-05 00:43:50,773 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938678438] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:50,773 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:50,773 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:50,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272193136] [2021-06-05 00:43:50,773 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:50,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:50,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:50,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:50,774 INFO L87 Difference]: Start difference. First operand 5634 states and 14960 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:51,478 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:43:51,613 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:43:51,780 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:43:51,959 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:43:52,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:52,078 INFO L93 Difference]: Finished difference Result 7514 states and 19441 transitions. [2021-06-05 00:43:52,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:52,078 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:52,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:52,084 INFO L225 Difference]: With dead ends: 7514 [2021-06-05 00:43:52,084 INFO L226 Difference]: Without dead ends: 7514 [2021-06-05 00:43:52,084 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1199.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:52,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7514 states. [2021-06-05 00:43:52,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7514 to 5450. [2021-06-05 00:43:52,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 5448 states have (on average 2.6490455212922175) internal successors, (14432), 5449 states have internal predecessors, (14432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:52,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 14432 transitions. [2021-06-05 00:43:52,144 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 14432 transitions. Word has length 114 [2021-06-05 00:43:52,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:52,144 INFO L482 AbstractCegarLoop]: Abstraction has 5450 states and 14432 transitions. [2021-06-05 00:43:52,144 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:52,144 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 14432 transitions. [2021-06-05 00:43:52,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:52,148 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:52,148 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:52,148 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2021-06-05 00:43:52,148 INFO L430 AbstractCegarLoop]: === Iteration 314 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:52,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:52,148 INFO L82 PathProgramCache]: Analyzing trace with hash 27369324, now seen corresponding path program 308 times [2021-06-05 00:43:52,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:52,148 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644531277] [2021-06-05 00:43:52,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:52,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:52,441 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:52,441 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644531277] [2021-06-05 00:43:52,442 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644531277] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:52,442 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:52,442 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:52,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127475411] [2021-06-05 00:43:52,442 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:52,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:52,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:52,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:52,442 INFO L87 Difference]: Start difference. First operand 5450 states and 14432 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:53,139 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:43:53,292 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:43:53,447 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:43:53,626 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:43:53,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:53,741 INFO L93 Difference]: Finished difference Result 10138 states and 26164 transitions. [2021-06-05 00:43:53,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:53,741 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:53,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:53,749 INFO L225 Difference]: With dead ends: 10138 [2021-06-05 00:43:53,749 INFO L226 Difference]: Without dead ends: 10138 [2021-06-05 00:43:53,749 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1222.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:53,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10138 states. [2021-06-05 00:43:53,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10138 to 5466. [2021-06-05 00:43:53,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5464 states have (on average 2.6497071742313323) internal successors, (14478), 5465 states have internal predecessors, (14478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:53,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14478 transitions. [2021-06-05 00:43:53,818 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14478 transitions. Word has length 114 [2021-06-05 00:43:53,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:53,818 INFO L482 AbstractCegarLoop]: Abstraction has 5466 states and 14478 transitions. [2021-06-05 00:43:53,818 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:53,818 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14478 transitions. [2021-06-05 00:43:53,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:53,822 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:53,822 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:53,822 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2021-06-05 00:43:53,822 INFO L430 AbstractCegarLoop]: === Iteration 315 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:53,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:53,822 INFO L82 PathProgramCache]: Analyzing trace with hash -2132123350, now seen corresponding path program 309 times [2021-06-05 00:43:53,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:53,822 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121607348] [2021-06-05 00:43:53,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:54,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:54,121 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:54,121 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121607348] [2021-06-05 00:43:54,121 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121607348] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:54,121 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:54,121 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:54,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063484016] [2021-06-05 00:43:54,121 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:54,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:54,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:54,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:54,121 INFO L87 Difference]: Start difference. First operand 5466 states and 14478 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:54,824 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:43:54,981 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:43:55,151 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:43:55,330 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:43:55,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:55,452 INFO L93 Difference]: Finished difference Result 8418 states and 21452 transitions. [2021-06-05 00:43:55,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:55,452 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:55,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:55,458 INFO L225 Difference]: With dead ends: 8418 [2021-06-05 00:43:55,458 INFO L226 Difference]: Without dead ends: 8418 [2021-06-05 00:43:55,458 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1223.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:55,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8418 states. [2021-06-05 00:43:55,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8418 to 5418. [2021-06-05 00:43:55,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5416 states have (on average 2.6477104874446087) internal successors, (14340), 5417 states have internal predecessors, (14340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:55,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14340 transitions. [2021-06-05 00:43:55,521 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14340 transitions. Word has length 114 [2021-06-05 00:43:55,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:55,543 INFO L482 AbstractCegarLoop]: Abstraction has 5418 states and 14340 transitions. [2021-06-05 00:43:55,543 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:55,543 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14340 transitions. [2021-06-05 00:43:55,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:55,547 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:55,547 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:55,547 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2021-06-05 00:43:55,547 INFO L430 AbstractCegarLoop]: === Iteration 316 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:55,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:55,548 INFO L82 PathProgramCache]: Analyzing trace with hash 349115948, now seen corresponding path program 310 times [2021-06-05 00:43:55,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:55,548 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033089832] [2021-06-05 00:43:55,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:55,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:55,827 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:55,827 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033089832] [2021-06-05 00:43:55,827 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033089832] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:55,827 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:55,827 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:55,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681971616] [2021-06-05 00:43:55,827 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:55,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:55,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:55,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:55,828 INFO L87 Difference]: Start difference. First operand 5418 states and 14340 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:56,545 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:43:56,687 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:43:56,847 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:43:57,027 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:43:57,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:57,158 INFO L93 Difference]: Finished difference Result 11494 states and 29381 transitions. [2021-06-05 00:43:57,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:57,159 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:57,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:57,168 INFO L225 Difference]: With dead ends: 11494 [2021-06-05 00:43:57,168 INFO L226 Difference]: Without dead ends: 11494 [2021-06-05 00:43:57,168 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1204.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:57,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11494 states. [2021-06-05 00:43:57,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11494 to 5450. [2021-06-05 00:43:57,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 5448 states have (on average 2.6490455212922175) internal successors, (14432), 5449 states have internal predecessors, (14432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:57,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 14432 transitions. [2021-06-05 00:43:57,248 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 14432 transitions. Word has length 114 [2021-06-05 00:43:57,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:57,249 INFO L482 AbstractCegarLoop]: Abstraction has 5450 states and 14432 transitions. [2021-06-05 00:43:57,249 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:57,249 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 14432 transitions. [2021-06-05 00:43:57,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:57,253 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:57,253 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:57,253 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2021-06-05 00:43:57,253 INFO L430 AbstractCegarLoop]: === Iteration 317 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:57,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:57,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1810376726, now seen corresponding path program 311 times [2021-06-05 00:43:57,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:57,253 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869443322] [2021-06-05 00:43:57,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:57,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:57,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:57,536 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:57,536 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869443322] [2021-06-05 00:43:57,536 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869443322] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:57,536 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:57,536 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:57,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24590603] [2021-06-05 00:43:57,537 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:57,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:57,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:57,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:57,537 INFO L87 Difference]: Start difference. First operand 5450 states and 14432 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:58,227 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:43:58,381 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:43:58,549 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:43:58,721 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:43:58,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:58,844 INFO L93 Difference]: Finished difference Result 12340 states and 31241 transitions. [2021-06-05 00:43:58,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:43:58,844 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:43:58,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:58,854 INFO L225 Difference]: With dead ends: 12340 [2021-06-05 00:43:58,854 INFO L226 Difference]: Without dead ends: 12340 [2021-06-05 00:43:58,854 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1223.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:43:58,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12340 states. [2021-06-05 00:43:58,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12340 to 5434. [2021-06-05 00:43:58,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5434 states, 5432 states have (on average 2.648379970544919) internal successors, (14386), 5433 states have internal predecessors, (14386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:58,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 14386 transitions. [2021-06-05 00:43:58,934 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 14386 transitions. Word has length 114 [2021-06-05 00:43:58,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:58,934 INFO L482 AbstractCegarLoop]: Abstraction has 5434 states and 14386 transitions. [2021-06-05 00:43:58,934 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:58,935 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 14386 transitions. [2021-06-05 00:43:58,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:43:58,938 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:58,939 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:58,939 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2021-06-05 00:43:58,939 INFO L430 AbstractCegarLoop]: === Iteration 318 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:58,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:58,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1012513266, now seen corresponding path program 312 times [2021-06-05 00:43:58,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:58,939 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270862157] [2021-06-05 00:43:58,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:59,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:59,232 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:59,232 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270862157] [2021-06-05 00:43:59,232 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270862157] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:59,233 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:59,233 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:43:59,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515366874] [2021-06-05 00:43:59,233 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:43:59,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:59,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:43:59,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:43:59,233 INFO L87 Difference]: Start difference. First operand 5434 states and 14386 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:59,921 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:44:00,063 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:44:00,226 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:44:00,400 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:44:00,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:00,516 INFO L93 Difference]: Finished difference Result 11640 states and 29612 transitions. [2021-06-05 00:44:00,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:00,517 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:00,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:00,526 INFO L225 Difference]: With dead ends: 11640 [2021-06-05 00:44:00,526 INFO L226 Difference]: Without dead ends: 11640 [2021-06-05 00:44:00,526 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1218.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:00,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11640 states. [2021-06-05 00:44:00,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11640 to 5450. [2021-06-05 00:44:00,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 5448 states have (on average 2.6490455212922175) internal successors, (14432), 5449 states have internal predecessors, (14432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:00,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 14432 transitions. [2021-06-05 00:44:00,600 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 14432 transitions. Word has length 114 [2021-06-05 00:44:00,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:00,600 INFO L482 AbstractCegarLoop]: Abstraction has 5450 states and 14432 transitions. [2021-06-05 00:44:00,600 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:00,601 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 14432 transitions. [2021-06-05 00:44:00,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:00,604 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:00,604 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:00,604 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2021-06-05 00:44:00,604 INFO L430 AbstractCegarLoop]: === Iteration 319 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:00,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:00,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1261060246, now seen corresponding path program 313 times [2021-06-05 00:44:00,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:00,605 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343771864] [2021-06-05 00:44:00,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:00,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:00,904 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:00,904 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343771864] [2021-06-05 00:44:00,904 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343771864] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:00,904 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:00,904 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:00,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462851617] [2021-06-05 00:44:00,904 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:00,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:00,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:00,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:00,905 INFO L87 Difference]: Start difference. First operand 5450 states and 14432 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:01,615 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:44:01,758 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:44:01,914 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:44:02,090 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:44:02,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:02,196 INFO L93 Difference]: Finished difference Result 8598 states and 21950 transitions. [2021-06-05 00:44:02,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:02,196 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:02,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:02,204 INFO L225 Difference]: With dead ends: 8598 [2021-06-05 00:44:02,204 INFO L226 Difference]: Without dead ends: 8598 [2021-06-05 00:44:02,204 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1214.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:02,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8598 states. [2021-06-05 00:44:02,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8598 to 5386. [2021-06-05 00:44:02,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5386 states, 5384 states have (on average 2.6463595839524516) internal successors, (14248), 5385 states have internal predecessors, (14248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:02,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5386 states to 5386 states and 14248 transitions. [2021-06-05 00:44:02,270 INFO L78 Accepts]: Start accepts. Automaton has 5386 states and 14248 transitions. Word has length 114 [2021-06-05 00:44:02,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:02,270 INFO L482 AbstractCegarLoop]: Abstraction has 5386 states and 14248 transitions. [2021-06-05 00:44:02,270 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:02,270 INFO L276 IsEmpty]: Start isEmpty. Operand 5386 states and 14248 transitions. [2021-06-05 00:44:02,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:02,274 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:02,274 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:02,274 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2021-06-05 00:44:02,274 INFO L430 AbstractCegarLoop]: === Iteration 320 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:02,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:02,274 INFO L82 PathProgramCache]: Analyzing trace with hash 213913774, now seen corresponding path program 314 times [2021-06-05 00:44:02,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:02,274 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108903008] [2021-06-05 00:44:02,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:02,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:02,551 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:02,551 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108903008] [2021-06-05 00:44:02,551 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108903008] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:02,551 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:02,551 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:02,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601743942] [2021-06-05 00:44:02,551 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:02,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:02,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:02,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:02,552 INFO L87 Difference]: Start difference. First operand 5386 states and 14248 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:03,268 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:44:03,412 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:44:03,574 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:44:03,752 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:44:03,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:03,897 INFO L93 Difference]: Finished difference Result 12022 states and 30851 transitions. [2021-06-05 00:44:03,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:03,897 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:03,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:03,906 INFO L225 Difference]: With dead ends: 12022 [2021-06-05 00:44:03,907 INFO L226 Difference]: Without dead ends: 12022 [2021-06-05 00:44:03,907 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1198.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:03,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12022 states. [2021-06-05 00:44:03,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12022 to 5450. [2021-06-05 00:44:03,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 5448 states have (on average 2.6490455212922175) internal successors, (14432), 5449 states have internal predecessors, (14432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:03,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 14432 transitions. [2021-06-05 00:44:03,987 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 14432 transitions. Word has length 114 [2021-06-05 00:44:03,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:03,987 INFO L482 AbstractCegarLoop]: Abstraction has 5450 states and 14432 transitions. [2021-06-05 00:44:03,987 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:03,987 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 14432 transitions. [2021-06-05 00:44:03,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:03,991 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:03,991 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:03,991 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2021-06-05 00:44:03,991 INFO L430 AbstractCegarLoop]: === Iteration 321 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:03,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:03,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1945578900, now seen corresponding path program 315 times [2021-06-05 00:44:03,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:03,991 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085469926] [2021-06-05 00:44:03,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:04,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:04,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:04,277 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:04,277 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085469926] [2021-06-05 00:44:04,277 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085469926] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:04,277 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:04,277 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:04,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256063667] [2021-06-05 00:44:04,277 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:04,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:04,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:04,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:04,278 INFO L87 Difference]: Start difference. First operand 5450 states and 14432 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:04,995 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:44:05,139 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:44:05,314 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:44:05,490 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:44:05,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:05,632 INFO L93 Difference]: Finished difference Result 12868 states and 32711 transitions. [2021-06-05 00:44:05,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:05,632 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:05,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:05,643 INFO L225 Difference]: With dead ends: 12868 [2021-06-05 00:44:05,643 INFO L226 Difference]: Without dead ends: 12868 [2021-06-05 00:44:05,643 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1215.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:05,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12868 states. [2021-06-05 00:44:05,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12868 to 5434. [2021-06-05 00:44:05,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5434 states, 5432 states have (on average 2.648379970544919) internal successors, (14386), 5433 states have internal predecessors, (14386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:05,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 14386 transitions. [2021-06-05 00:44:05,724 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 14386 transitions. Word has length 114 [2021-06-05 00:44:05,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:05,724 INFO L482 AbstractCegarLoop]: Abstraction has 5434 states and 14386 transitions. [2021-06-05 00:44:05,724 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:05,724 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 14386 transitions. [2021-06-05 00:44:05,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:05,728 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:05,728 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:05,728 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2021-06-05 00:44:05,728 INFO L430 AbstractCegarLoop]: === Iteration 322 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:05,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:05,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1147715440, now seen corresponding path program 316 times [2021-06-05 00:44:05,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:05,728 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712150183] [2021-06-05 00:44:05,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:06,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:06,010 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:06,010 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712150183] [2021-06-05 00:44:06,010 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712150183] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:06,010 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:06,010 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:06,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009516084] [2021-06-05 00:44:06,010 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:06,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:06,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:06,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:06,011 INFO L87 Difference]: Start difference. First operand 5434 states and 14386 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:06,718 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:44:06,861 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:44:07,028 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:44:07,204 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:44:07,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:07,341 INFO L93 Difference]: Finished difference Result 16074 states and 40825 transitions. [2021-06-05 00:44:07,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:07,341 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:07,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:07,355 INFO L225 Difference]: With dead ends: 16074 [2021-06-05 00:44:07,355 INFO L226 Difference]: Without dead ends: 16074 [2021-06-05 00:44:07,355 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1228.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:07,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16074 states. [2021-06-05 00:44:07,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16074 to 5450. [2021-06-05 00:44:07,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 5448 states have (on average 2.6490455212922175) internal successors, (14432), 5449 states have internal predecessors, (14432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:07,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 14432 transitions. [2021-06-05 00:44:07,462 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 14432 transitions. Word has length 114 [2021-06-05 00:44:07,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:07,462 INFO L482 AbstractCegarLoop]: Abstraction has 5450 states and 14432 transitions. [2021-06-05 00:44:07,462 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:07,462 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 14432 transitions. [2021-06-05 00:44:07,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:07,466 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:07,466 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:07,466 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2021-06-05 00:44:07,466 INFO L430 AbstractCegarLoop]: === Iteration 323 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:07,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:07,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1396262420, now seen corresponding path program 317 times [2021-06-05 00:44:07,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:07,466 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215820042] [2021-06-05 00:44:07,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:07,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:07,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:07,769 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:07,769 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215820042] [2021-06-05 00:44:07,769 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215820042] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:07,769 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:07,769 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:07,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633483845] [2021-06-05 00:44:07,770 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:07,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:07,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:07,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:07,770 INFO L87 Difference]: Start difference. First operand 5450 states and 14432 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:08,481 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:44:08,627 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:44:08,786 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:44:08,966 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:44:09,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:09,093 INFO L93 Difference]: Finished difference Result 13032 states and 33163 transitions. [2021-06-05 00:44:09,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:09,093 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:09,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:09,104 INFO L225 Difference]: With dead ends: 13032 [2021-06-05 00:44:09,105 INFO L226 Difference]: Without dead ends: 13032 [2021-06-05 00:44:09,105 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1223.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:09,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13032 states. [2021-06-05 00:44:09,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13032 to 5418. [2021-06-05 00:44:09,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5416 states have (on average 2.6477104874446087) internal successors, (14340), 5417 states have internal predecessors, (14340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:09,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14340 transitions. [2021-06-05 00:44:09,206 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14340 transitions. Word has length 114 [2021-06-05 00:44:09,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:09,206 INFO L482 AbstractCegarLoop]: Abstraction has 5418 states and 14340 transitions. [2021-06-05 00:44:09,206 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:09,206 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14340 transitions. [2021-06-05 00:44:09,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:09,210 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:09,210 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:09,210 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2021-06-05 00:44:09,210 INFO L430 AbstractCegarLoop]: === Iteration 324 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:09,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:09,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1878434570, now seen corresponding path program 318 times [2021-06-05 00:44:09,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:09,210 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78228274] [2021-06-05 00:44:09,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:09,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:09,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:09,503 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:09,503 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78228274] [2021-06-05 00:44:09,503 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78228274] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:09,503 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:09,503 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:09,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582314531] [2021-06-05 00:44:09,503 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:09,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:09,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:09,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:09,503 INFO L87 Difference]: Start difference. First operand 5418 states and 14340 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:10,184 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:44:10,335 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:44:10,501 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:44:10,676 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:44:10,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:10,795 INFO L93 Difference]: Finished difference Result 12152 states and 31036 transitions. [2021-06-05 00:44:10,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:10,796 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:10,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:10,805 INFO L225 Difference]: With dead ends: 12152 [2021-06-05 00:44:10,805 INFO L226 Difference]: Without dead ends: 12152 [2021-06-05 00:44:10,806 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1214.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:10,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12152 states. [2021-06-05 00:44:10,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12152 to 5466. [2021-06-05 00:44:10,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5464 states have (on average 2.6497071742313323) internal successors, (14478), 5465 states have internal predecessors, (14478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:10,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14478 transitions. [2021-06-05 00:44:10,885 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14478 transitions. Word has length 114 [2021-06-05 00:44:10,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:10,885 INFO L482 AbstractCegarLoop]: Abstraction has 5466 states and 14478 transitions. [2021-06-05 00:44:10,885 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:10,885 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14478 transitions. [2021-06-05 00:44:10,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:10,889 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:10,889 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:10,889 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2021-06-05 00:44:10,889 INFO L430 AbstractCegarLoop]: === Iteration 325 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:10,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:10,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1629887590, now seen corresponding path program 319 times [2021-06-05 00:44:10,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:10,890 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016729422] [2021-06-05 00:44:10,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:11,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:11,177 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:11,177 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016729422] [2021-06-05 00:44:11,177 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016729422] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:11,177 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:11,177 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:11,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541742132] [2021-06-05 00:44:11,177 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:11,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:11,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:11,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:11,178 INFO L87 Difference]: Start difference. First operand 5466 states and 14478 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:11,893 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:44:12,049 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:44:12,208 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:44:12,388 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:44:12,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:12,515 INFO L93 Difference]: Finished difference Result 11988 states and 30634 transitions. [2021-06-05 00:44:12,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:12,515 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:12,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:12,524 INFO L225 Difference]: With dead ends: 11988 [2021-06-05 00:44:12,524 INFO L226 Difference]: Without dead ends: 11988 [2021-06-05 00:44:12,525 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1216.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:12,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11988 states. [2021-06-05 00:44:12,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11988 to 5450. [2021-06-05 00:44:12,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 5448 states have (on average 2.6490455212922175) internal successors, (14432), 5449 states have internal predecessors, (14432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:12,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 14432 transitions. [2021-06-05 00:44:12,602 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 14432 transitions. Word has length 114 [2021-06-05 00:44:12,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:12,602 INFO L482 AbstractCegarLoop]: Abstraction has 5450 states and 14432 transitions. [2021-06-05 00:44:12,602 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:12,602 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 14432 transitions. [2021-06-05 00:44:12,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:12,606 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:12,606 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:12,606 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2021-06-05 00:44:12,606 INFO L430 AbstractCegarLoop]: === Iteration 326 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:12,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:12,606 INFO L82 PathProgramCache]: Analyzing trace with hash 473070286, now seen corresponding path program 320 times [2021-06-05 00:44:12,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:12,606 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669552285] [2021-06-05 00:44:12,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:12,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:12,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:12,901 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:12,901 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669552285] [2021-06-05 00:44:12,901 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669552285] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:12,901 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:12,901 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:12,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200707943] [2021-06-05 00:44:12,901 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:12,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:12,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:12,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:12,902 INFO L87 Difference]: Start difference. First operand 5450 states and 14432 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:13,608 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:44:13,746 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:44:13,919 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:44:14,100 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:44:14,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:14,210 INFO L93 Difference]: Finished difference Result 9046 states and 23206 transitions. [2021-06-05 00:44:14,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:14,211 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:14,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:14,217 INFO L225 Difference]: With dead ends: 9046 [2021-06-05 00:44:14,217 INFO L226 Difference]: Without dead ends: 9046 [2021-06-05 00:44:14,218 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1209.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:14,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9046 states. [2021-06-05 00:44:14,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9046 to 5322. [2021-06-05 00:44:14,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5322 states, 5320 states have (on average 2.643609022556391) internal successors, (14064), 5321 states have internal predecessors, (14064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:14,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5322 states to 5322 states and 14064 transitions. [2021-06-05 00:44:14,283 INFO L78 Accepts]: Start accepts. Automaton has 5322 states and 14064 transitions. Word has length 114 [2021-06-05 00:44:14,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:14,283 INFO L482 AbstractCegarLoop]: Abstraction has 5322 states and 14064 transitions. [2021-06-05 00:44:14,283 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:14,283 INFO L276 IsEmpty]: Start isEmpty. Operand 5322 states and 14064 transitions. [2021-06-05 00:44:14,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:14,287 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:14,287 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:14,287 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2021-06-05 00:44:14,287 INFO L430 AbstractCegarLoop]: === Iteration 327 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:14,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:14,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1609392368, now seen corresponding path program 321 times [2021-06-05 00:44:14,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:14,287 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608711695] [2021-06-05 00:44:14,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:14,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:14,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:14,594 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:14,594 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608711695] [2021-06-05 00:44:14,594 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608711695] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:14,594 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:14,594 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:14,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644768625] [2021-06-05 00:44:14,594 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:14,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:14,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:14,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:14,595 INFO L87 Difference]: Start difference. First operand 5322 states and 14064 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:15,308 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:44:15,453 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:44:15,615 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:44:15,798 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:44:15,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:15,932 INFO L93 Difference]: Finished difference Result 12550 states and 32321 transitions. [2021-06-05 00:44:15,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:15,932 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:15,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:15,942 INFO L225 Difference]: With dead ends: 12550 [2021-06-05 00:44:15,943 INFO L226 Difference]: Without dead ends: 12550 [2021-06-05 00:44:15,943 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1231.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:15,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12550 states. [2021-06-05 00:44:16,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12550 to 5402. [2021-06-05 00:44:16,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 5400 states have (on average 2.647037037037037) internal successors, (14294), 5401 states have internal predecessors, (14294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:16,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 14294 transitions. [2021-06-05 00:44:16,024 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 14294 transitions. Word has length 114 [2021-06-05 00:44:16,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:16,024 INFO L482 AbstractCegarLoop]: Abstraction has 5402 states and 14294 transitions. [2021-06-05 00:44:16,024 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:16,024 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 14294 transitions. [2021-06-05 00:44:16,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:16,028 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:16,028 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:16,028 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2021-06-05 00:44:16,028 INFO L430 AbstractCegarLoop]: === Iteration 328 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:16,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:16,028 INFO L82 PathProgramCache]: Analyzing trace with hash 526082254, now seen corresponding path program 322 times [2021-06-05 00:44:16,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:16,029 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12135648] [2021-06-05 00:44:16,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:16,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:16,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:16,312 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:16,312 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12135648] [2021-06-05 00:44:16,312 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12135648] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:16,312 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:16,312 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:16,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779193581] [2021-06-05 00:44:16,312 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:16,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:16,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:16,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:16,313 INFO L87 Difference]: Start difference. First operand 5402 states and 14294 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:17,007 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:44:17,149 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:44:17,319 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:44:17,504 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:44:17,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:17,626 INFO L93 Difference]: Finished difference Result 13396 states and 34181 transitions. [2021-06-05 00:44:17,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:17,626 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:17,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:17,636 INFO L225 Difference]: With dead ends: 13396 [2021-06-05 00:44:17,636 INFO L226 Difference]: Without dead ends: 13396 [2021-06-05 00:44:17,637 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1225.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:17,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13396 states. [2021-06-05 00:44:17,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13396 to 5386. [2021-06-05 00:44:17,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5386 states, 5384 states have (on average 2.6463595839524516) internal successors, (14248), 5385 states have internal predecessors, (14248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:17,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5386 states to 5386 states and 14248 transitions. [2021-06-05 00:44:17,720 INFO L78 Accepts]: Start accepts. Automaton has 5386 states and 14248 transitions. Word has length 114 [2021-06-05 00:44:17,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:17,720 INFO L482 AbstractCegarLoop]: Abstraction has 5386 states and 14248 transitions. [2021-06-05 00:44:17,720 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:17,720 INFO L276 IsEmpty]: Start isEmpty. Operand 5386 states and 14248 transitions. [2021-06-05 00:44:17,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:17,723 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:17,723 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:17,724 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2021-06-05 00:44:17,724 INFO L430 AbstractCegarLoop]: === Iteration 329 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:17,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:17,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1323945714, now seen corresponding path program 323 times [2021-06-05 00:44:17,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:17,724 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044428198] [2021-06-05 00:44:17,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:18,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:18,009 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:18,009 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044428198] [2021-06-05 00:44:18,009 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044428198] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:18,009 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:18,009 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:18,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937047743] [2021-06-05 00:44:18,009 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:18,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:18,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:18,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:18,010 INFO L87 Difference]: Start difference. First operand 5386 states and 14248 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:18,705 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:44:18,848 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:44:19,013 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:44:19,187 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:44:19,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:19,322 INFO L93 Difference]: Finished difference Result 16602 states and 42295 transitions. [2021-06-05 00:44:19,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:19,322 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:19,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:19,336 INFO L225 Difference]: With dead ends: 16602 [2021-06-05 00:44:19,336 INFO L226 Difference]: Without dead ends: 16602 [2021-06-05 00:44:19,336 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1214.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:19,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16602 states. [2021-06-05 00:44:19,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16602 to 5402. [2021-06-05 00:44:19,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 5400 states have (on average 2.647037037037037) internal successors, (14294), 5401 states have internal predecessors, (14294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:19,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 14294 transitions. [2021-06-05 00:44:19,432 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 14294 transitions. Word has length 114 [2021-06-05 00:44:19,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:19,432 INFO L482 AbstractCegarLoop]: Abstraction has 5402 states and 14294 transitions. [2021-06-05 00:44:19,432 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:19,432 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 14294 transitions. [2021-06-05 00:44:19,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:19,437 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:19,437 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:19,437 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2021-06-05 00:44:19,437 INFO L430 AbstractCegarLoop]: === Iteration 330 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:19,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:19,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1075398734, now seen corresponding path program 324 times [2021-06-05 00:44:19,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:19,437 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272006495] [2021-06-05 00:44:19,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:19,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:19,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:19,726 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:19,726 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272006495] [2021-06-05 00:44:19,727 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272006495] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:19,727 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:19,727 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:19,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950782569] [2021-06-05 00:44:19,727 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:19,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:19,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:19,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:19,727 INFO L87 Difference]: Start difference. First operand 5402 states and 14294 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:20,442 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:44:20,588 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:44:20,748 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:44:20,926 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:44:21,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:21,042 INFO L93 Difference]: Finished difference Result 13560 states and 34633 transitions. [2021-06-05 00:44:21,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:21,042 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:21,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:21,053 INFO L225 Difference]: With dead ends: 13560 [2021-06-05 00:44:21,053 INFO L226 Difference]: Without dead ends: 13560 [2021-06-05 00:44:21,054 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1226.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:21,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13560 states. [2021-06-05 00:44:21,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13560 to 5370. [2021-06-05 00:44:21,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5370 states, 5368 states have (on average 2.645678092399404) internal successors, (14202), 5369 states have internal predecessors, (14202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:21,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5370 states to 5370 states and 14202 transitions. [2021-06-05 00:44:21,139 INFO L78 Accepts]: Start accepts. Automaton has 5370 states and 14202 transitions. Word has length 114 [2021-06-05 00:44:21,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:21,139 INFO L482 AbstractCegarLoop]: Abstraction has 5370 states and 14202 transitions. [2021-06-05 00:44:21,139 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:21,140 INFO L276 IsEmpty]: Start isEmpty. Operand 5370 states and 14202 transitions. [2021-06-05 00:44:21,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:21,143 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:21,143 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:21,143 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2021-06-05 00:44:21,143 INFO L430 AbstractCegarLoop]: === Iteration 331 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:21,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:21,144 INFO L82 PathProgramCache]: Analyzing trace with hash 55128428, now seen corresponding path program 325 times [2021-06-05 00:44:21,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:21,144 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351821694] [2021-06-05 00:44:21,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:21,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:21,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:21,441 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:21,442 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351821694] [2021-06-05 00:44:21,442 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351821694] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:21,442 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:21,442 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:21,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903882246] [2021-06-05 00:44:21,442 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:21,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:21,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:21,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:21,442 INFO L87 Difference]: Start difference. First operand 5370 states and 14202 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:22,154 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:44:22,315 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:44:22,491 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:44:22,672 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:44:22,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:22,831 INFO L93 Difference]: Finished difference Result 17082 states and 43627 transitions. [2021-06-05 00:44:22,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:22,831 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:22,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:22,871 INFO L225 Difference]: With dead ends: 17082 [2021-06-05 00:44:22,871 INFO L226 Difference]: Without dead ends: 17082 [2021-06-05 00:44:22,871 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1235.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:22,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17082 states. [2021-06-05 00:44:22,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17082 to 5418. [2021-06-05 00:44:22,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5416 states have (on average 2.6477104874446087) internal successors, (14340), 5417 states have internal predecessors, (14340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:22,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14340 transitions. [2021-06-05 00:44:22,961 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14340 transitions. Word has length 114 [2021-06-05 00:44:22,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:22,961 INFO L482 AbstractCegarLoop]: Abstraction has 5418 states and 14340 transitions. [2021-06-05 00:44:22,961 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:22,961 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14340 transitions. [2021-06-05 00:44:22,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:22,965 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:22,965 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:22,965 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2021-06-05 00:44:22,965 INFO L430 AbstractCegarLoop]: === Iteration 332 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:22,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:22,966 INFO L82 PathProgramCache]: Analyzing trace with hash -193418552, now seen corresponding path program 326 times [2021-06-05 00:44:22,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:22,966 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366020878] [2021-06-05 00:44:22,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:23,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:23,255 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:23,255 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366020878] [2021-06-05 00:44:23,255 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366020878] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:23,256 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:23,256 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:23,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321290801] [2021-06-05 00:44:23,256 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:23,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:23,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:23,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:23,256 INFO L87 Difference]: Start difference. First operand 5418 states and 14340 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:23,944 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:44:24,103 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:44:24,263 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:44:24,444 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:44:24,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:24,580 INFO L93 Difference]: Finished difference Result 16918 states and 43225 transitions. [2021-06-05 00:44:24,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:24,580 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:24,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:24,595 INFO L225 Difference]: With dead ends: 16918 [2021-06-05 00:44:24,595 INFO L226 Difference]: Without dead ends: 16918 [2021-06-05 00:44:24,595 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1216.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:24,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16918 states. [2021-06-05 00:44:24,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16918 to 5402. [2021-06-05 00:44:24,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 5400 states have (on average 2.647037037037037) internal successors, (14294), 5401 states have internal predecessors, (14294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:24,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 14294 transitions. [2021-06-05 00:44:24,699 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 14294 transitions. Word has length 114 [2021-06-05 00:44:24,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:24,699 INFO L482 AbstractCegarLoop]: Abstraction has 5402 states and 14294 transitions. [2021-06-05 00:44:24,699 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:24,699 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 14294 transitions. [2021-06-05 00:44:24,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:24,703 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:24,703 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:24,703 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2021-06-05 00:44:24,703 INFO L430 AbstractCegarLoop]: === Iteration 333 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:24,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:24,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1350235856, now seen corresponding path program 327 times [2021-06-05 00:44:24,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:24,704 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700996779] [2021-06-05 00:44:24,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:24,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:25,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:25,000 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:25,000 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700996779] [2021-06-05 00:44:25,000 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700996779] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:25,001 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:25,001 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:25,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063390942] [2021-06-05 00:44:25,001 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:25,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:25,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:25,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:25,001 INFO L87 Difference]: Start difference. First operand 5402 states and 14294 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:25,710 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:44:25,848 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:44:26,021 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:44:26,201 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:44:26,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:26,324 INFO L93 Difference]: Finished difference Result 13976 states and 35797 transitions. [2021-06-05 00:44:26,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:26,324 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:26,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:26,335 INFO L225 Difference]: With dead ends: 13976 [2021-06-05 00:44:26,336 INFO L226 Difference]: Without dead ends: 13976 [2021-06-05 00:44:26,336 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1230.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:26,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13976 states. [2021-06-05 00:44:26,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13976 to 5338. [2021-06-05 00:44:26,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5338 states, 5336 states have (on average 2.644302848575712) internal successors, (14110), 5337 states have internal predecessors, (14110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:26,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5338 states to 5338 states and 14110 transitions. [2021-06-05 00:44:26,422 INFO L78 Accepts]: Start accepts. Automaton has 5338 states and 14110 transitions. Word has length 114 [2021-06-05 00:44:26,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:26,422 INFO L482 AbstractCegarLoop]: Abstraction has 5338 states and 14110 transitions. [2021-06-05 00:44:26,422 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:26,422 INFO L276 IsEmpty]: Start isEmpty. Operand 5338 states and 14110 transitions. [2021-06-05 00:44:26,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:26,426 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:26,426 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:26,426 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2021-06-05 00:44:26,426 INFO L430 AbstractCegarLoop]: === Iteration 334 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:26,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:26,426 INFO L82 PathProgramCache]: Analyzing trace with hash 459488010, now seen corresponding path program 328 times [2021-06-05 00:44:26,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:26,426 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857820149] [2021-06-05 00:44:26,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:26,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:26,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:26,729 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:26,729 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857820149] [2021-06-05 00:44:26,729 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857820149] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:26,730 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:26,730 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:26,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385056312] [2021-06-05 00:44:26,730 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:26,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:26,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:26,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:26,730 INFO L87 Difference]: Start difference. First operand 5338 states and 14110 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:27,412 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:44:27,565 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:44:27,735 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:44:27,911 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:44:28,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:28,034 INFO L93 Difference]: Finished difference Result 12648 states and 32414 transitions. [2021-06-05 00:44:28,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:28,035 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:28,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:28,046 INFO L225 Difference]: With dead ends: 12648 [2021-06-05 00:44:28,046 INFO L226 Difference]: Without dead ends: 12648 [2021-06-05 00:44:28,047 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1230.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:28,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12648 states. [2021-06-05 00:44:28,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12648 to 5402. [2021-06-05 00:44:28,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 5400 states have (on average 2.647037037037037) internal successors, (14294), 5401 states have internal predecessors, (14294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:28,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 14294 transitions. [2021-06-05 00:44:28,162 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 14294 transitions. Word has length 114 [2021-06-05 00:44:28,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:28,162 INFO L482 AbstractCegarLoop]: Abstraction has 5402 states and 14294 transitions. [2021-06-05 00:44:28,162 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:28,162 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 14294 transitions. [2021-06-05 00:44:28,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:28,165 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:28,165 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:28,165 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2021-06-05 00:44:28,166 INFO L430 AbstractCegarLoop]: === Iteration 335 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:28,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:28,166 INFO L82 PathProgramCache]: Analyzing trace with hash 210941030, now seen corresponding path program 329 times [2021-06-05 00:44:28,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:28,166 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117669361] [2021-06-05 00:44:28,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:28,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:28,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:28,467 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:28,467 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117669361] [2021-06-05 00:44:28,468 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117669361] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:28,468 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:28,468 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:28,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031312100] [2021-06-05 00:44:28,468 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:28,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:28,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:28,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:28,468 INFO L87 Difference]: Start difference. First operand 5402 states and 14294 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:29,153 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:44:29,308 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:44:29,468 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:44:29,648 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:44:29,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:29,764 INFO L93 Difference]: Finished difference Result 12484 states and 32012 transitions. [2021-06-05 00:44:29,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:29,765 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:29,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:29,775 INFO L225 Difference]: With dead ends: 12484 [2021-06-05 00:44:29,775 INFO L226 Difference]: Without dead ends: 12484 [2021-06-05 00:44:29,775 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1222.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:29,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12484 states. [2021-06-05 00:44:29,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12484 to 5386. [2021-06-05 00:44:29,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5386 states, 5384 states have (on average 2.6463595839524516) internal successors, (14248), 5385 states have internal predecessors, (14248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:29,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5386 states to 5386 states and 14248 transitions. [2021-06-05 00:44:29,857 INFO L78 Accepts]: Start accepts. Automaton has 5386 states and 14248 transitions. Word has length 114 [2021-06-05 00:44:29,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:29,857 INFO L482 AbstractCegarLoop]: Abstraction has 5386 states and 14248 transitions. [2021-06-05 00:44:29,857 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:29,858 INFO L276 IsEmpty]: Start isEmpty. Operand 5386 states and 14248 transitions. [2021-06-05 00:44:29,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:29,861 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:29,861 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:29,861 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2021-06-05 00:44:29,861 INFO L430 AbstractCegarLoop]: === Iteration 336 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:29,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:29,862 INFO L82 PathProgramCache]: Analyzing trace with hash -945876274, now seen corresponding path program 330 times [2021-06-05 00:44:29,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:29,862 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887326856] [2021-06-05 00:44:29,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:30,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:30,166 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:30,167 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887326856] [2021-06-05 00:44:30,167 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887326856] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:30,167 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:30,167 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:30,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260938961] [2021-06-05 00:44:30,167 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:30,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:30,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:30,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:30,167 INFO L87 Difference]: Start difference. First operand 5386 states and 14248 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:30,884 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:44:31,020 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:44:31,194 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:44:31,380 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:44:31,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:31,508 INFO L93 Difference]: Finished difference Result 12772 states and 32840 transitions. [2021-06-05 00:44:31,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:31,508 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:31,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:31,520 INFO L225 Difference]: With dead ends: 12772 [2021-06-05 00:44:31,520 INFO L226 Difference]: Without dead ends: 12772 [2021-06-05 00:44:31,520 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1228.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:31,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12772 states. [2021-06-05 00:44:31,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12772 to 5354. [2021-06-05 00:44:31,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 5352 states have (on average 2.6449925261584455) internal successors, (14156), 5353 states have internal predecessors, (14156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:31,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 14156 transitions. [2021-06-05 00:44:31,600 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 14156 transitions. Word has length 114 [2021-06-05 00:44:31,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:31,600 INFO L482 AbstractCegarLoop]: Abstraction has 5354 states and 14156 transitions. [2021-06-05 00:44:31,600 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:31,600 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 14156 transitions. [2021-06-05 00:44:31,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:31,603 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:31,604 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:31,604 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2021-06-05 00:44:31,604 INFO L430 AbstractCegarLoop]: === Iteration 337 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:31,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:31,604 INFO L82 PathProgramCache]: Analyzing trace with hash 762306864, now seen corresponding path program 331 times [2021-06-05 00:44:31,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:31,604 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840822968] [2021-06-05 00:44:31,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:31,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:31,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:31,911 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:31,911 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840822968] [2021-06-05 00:44:31,911 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840822968] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:31,911 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:31,911 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:31,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197270155] [2021-06-05 00:44:31,911 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:31,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:31,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:31,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:31,911 INFO L87 Difference]: Start difference. First operand 5354 states and 14156 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:32,744 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:44:32,918 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:44:33,099 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:44:33,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:33,216 INFO L93 Difference]: Finished difference Result 9414 states and 24248 transitions. [2021-06-05 00:44:33,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:33,216 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:33,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:33,224 INFO L225 Difference]: With dead ends: 9414 [2021-06-05 00:44:33,224 INFO L226 Difference]: Without dead ends: 9414 [2021-06-05 00:44:33,224 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1208.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:33,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9414 states. [2021-06-05 00:44:33,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9414 to 5290. [2021-06-05 00:44:33,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5290 states, 5288 states have (on average 2.6422087745839637) internal successors, (13972), 5289 states have internal predecessors, (13972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:33,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5290 states to 5290 states and 13972 transitions. [2021-06-05 00:44:33,299 INFO L78 Accepts]: Start accepts. Automaton has 5290 states and 13972 transitions. Word has length 114 [2021-06-05 00:44:33,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:33,299 INFO L482 AbstractCegarLoop]: Abstraction has 5290 states and 13972 transitions. [2021-06-05 00:44:33,299 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:33,299 INFO L276 IsEmpty]: Start isEmpty. Operand 5290 states and 13972 transitions. [2021-06-05 00:44:33,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:33,303 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:33,303 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:33,303 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2021-06-05 00:44:33,303 INFO L430 AbstractCegarLoop]: === Iteration 338 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:33,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:33,304 INFO L82 PathProgramCache]: Analyzing trace with hash 804610408, now seen corresponding path program 332 times [2021-06-05 00:44:33,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:33,304 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371794851] [2021-06-05 00:44:33,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:33,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:33,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:33,612 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:33,612 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371794851] [2021-06-05 00:44:33,612 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371794851] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:33,612 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:33,612 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:33,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625221694] [2021-06-05 00:44:33,612 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:33,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:33,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:33,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:33,613 INFO L87 Difference]: Start difference. First operand 5290 states and 13972 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:34,321 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:44:34,466 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:44:34,623 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:44:34,799 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:44:34,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:34,912 INFO L93 Difference]: Finished difference Result 6978 states and 17939 transitions. [2021-06-05 00:44:34,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:34,913 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:34,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:34,919 INFO L225 Difference]: With dead ends: 6978 [2021-06-05 00:44:34,919 INFO L226 Difference]: Without dead ends: 6978 [2021-06-05 00:44:34,920 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1228.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:34,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6978 states. [2021-06-05 00:44:34,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6978 to 5198. [2021-06-05 00:44:34,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5198 states, 5196 states have (on average 2.638183217859892) internal successors, (13708), 5197 states have internal predecessors, (13708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:34,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5198 states to 5198 states and 13708 transitions. [2021-06-05 00:44:34,980 INFO L78 Accepts]: Start accepts. Automaton has 5198 states and 13708 transitions. Word has length 114 [2021-06-05 00:44:34,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:34,980 INFO L482 AbstractCegarLoop]: Abstraction has 5198 states and 13708 transitions. [2021-06-05 00:44:34,980 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:34,980 INFO L276 IsEmpty]: Start isEmpty. Operand 5198 states and 13708 transitions. [2021-06-05 00:44:34,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:34,984 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:34,984 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:34,984 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2021-06-05 00:44:34,984 INFO L430 AbstractCegarLoop]: === Iteration 339 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:34,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:34,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1354882266, now seen corresponding path program 333 times [2021-06-05 00:44:34,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:34,984 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320086296] [2021-06-05 00:44:34,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:34,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:35,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:35,270 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:35,270 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320086296] [2021-06-05 00:44:35,270 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320086296] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:35,270 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:35,270 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:35,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389150716] [2021-06-05 00:44:35,270 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:35,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:35,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:35,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:35,271 INFO L87 Difference]: Start difference. First operand 5198 states and 13708 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:35,958 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:44:36,103 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:44:36,271 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:44:36,441 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:44:36,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:36,558 INFO L93 Difference]: Finished difference Result 7824 states and 19799 transitions. [2021-06-05 00:44:36,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:36,559 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:36,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:36,564 INFO L225 Difference]: With dead ends: 7824 [2021-06-05 00:44:36,564 INFO L226 Difference]: Without dead ends: 7824 [2021-06-05 00:44:36,564 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1218.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:36,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7824 states. [2021-06-05 00:44:36,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7824 to 5182. [2021-06-05 00:44:36,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5182 states, 5180 states have (on average 2.6374517374517374) internal successors, (13662), 5181 states have internal predecessors, (13662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:36,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5182 states to 5182 states and 13662 transitions. [2021-06-05 00:44:36,623 INFO L78 Accepts]: Start accepts. Automaton has 5182 states and 13662 transitions. Word has length 114 [2021-06-05 00:44:36,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:36,623 INFO L482 AbstractCegarLoop]: Abstraction has 5182 states and 13662 transitions. [2021-06-05 00:44:36,624 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:36,624 INFO L276 IsEmpty]: Start isEmpty. Operand 5182 states and 13662 transitions. [2021-06-05 00:44:36,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:36,627 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:36,627 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:36,627 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2021-06-05 00:44:36,627 INFO L430 AbstractCegarLoop]: === Iteration 340 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:36,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:36,627 INFO L82 PathProgramCache]: Analyzing trace with hash -557018806, now seen corresponding path program 334 times [2021-06-05 00:44:36,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:36,628 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117216285] [2021-06-05 00:44:36,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:36,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:36,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:36,926 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:36,926 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117216285] [2021-06-05 00:44:36,926 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117216285] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:36,926 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:36,926 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:36,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371796088] [2021-06-05 00:44:36,927 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:36,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:36,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:36,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:36,927 INFO L87 Difference]: Start difference. First operand 5182 states and 13662 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:37,618 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:44:37,782 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:44:37,947 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:44:38,119 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:44:38,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:38,235 INFO L93 Difference]: Finished difference Result 11030 states and 27913 transitions. [2021-06-05 00:44:38,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:38,236 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:38,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:38,244 INFO L225 Difference]: With dead ends: 11030 [2021-06-05 00:44:38,244 INFO L226 Difference]: Without dead ends: 11030 [2021-06-05 00:44:38,244 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1256.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:38,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11030 states. [2021-06-05 00:44:38,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11030 to 5198. [2021-06-05 00:44:38,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5198 states, 5196 states have (on average 2.638183217859892) internal successors, (13708), 5197 states have internal predecessors, (13708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:38,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5198 states to 5198 states and 13708 transitions. [2021-06-05 00:44:38,320 INFO L78 Accepts]: Start accepts. Automaton has 5198 states and 13708 transitions. Word has length 114 [2021-06-05 00:44:38,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:38,320 INFO L482 AbstractCegarLoop]: Abstraction has 5198 states and 13708 transitions. [2021-06-05 00:44:38,320 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:38,320 INFO L276 IsEmpty]: Start isEmpty. Operand 5198 states and 13708 transitions. [2021-06-05 00:44:38,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:38,323 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:38,323 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:38,323 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2021-06-05 00:44:38,324 INFO L430 AbstractCegarLoop]: === Iteration 341 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:38,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:38,324 INFO L82 PathProgramCache]: Analyzing trace with hash -805565786, now seen corresponding path program 335 times [2021-06-05 00:44:38,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:38,324 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348602972] [2021-06-05 00:44:38,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:38,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:38,602 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:38,602 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348602972] [2021-06-05 00:44:38,602 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348602972] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:38,602 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:38,602 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:38,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933409172] [2021-06-05 00:44:38,602 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:38,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:38,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:38,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:38,603 INFO L87 Difference]: Start difference. First operand 5198 states and 13708 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:39,295 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 00:44:39,439 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:44:39,594 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:44:39,770 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:44:39,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:39,865 INFO L93 Difference]: Finished difference Result 7988 states and 20251 transitions. [2021-06-05 00:44:39,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:39,866 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:39,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:39,871 INFO L225 Difference]: With dead ends: 7988 [2021-06-05 00:44:39,871 INFO L226 Difference]: Without dead ends: 7988 [2021-06-05 00:44:39,871 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1196.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:39,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7988 states. [2021-06-05 00:44:39,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7988 to 5166. [2021-06-05 00:44:39,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5164 states have (on average 2.6367157242447714) internal successors, (13616), 5165 states have internal predecessors, (13616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:39,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 13616 transitions. [2021-06-05 00:44:39,931 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 13616 transitions. Word has length 114 [2021-06-05 00:44:39,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:39,932 INFO L482 AbstractCegarLoop]: Abstraction has 5166 states and 13616 transitions. [2021-06-05 00:44:39,932 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:39,932 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 13616 transitions. [2021-06-05 00:44:39,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:39,935 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:39,935 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:39,935 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2021-06-05 00:44:39,935 INFO L430 AbstractCegarLoop]: === Iteration 342 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:39,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:39,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1825836092, now seen corresponding path program 336 times [2021-06-05 00:44:39,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:39,936 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444336997] [2021-06-05 00:44:39,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:39,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:40,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:40,233 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:40,233 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444336997] [2021-06-05 00:44:40,233 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444336997] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:40,233 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:40,233 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:40,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228022860] [2021-06-05 00:44:40,233 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:40,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:40,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:40,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:40,234 INFO L87 Difference]: Start difference. First operand 5166 states and 13616 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:40,924 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:44:41,081 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:44:41,251 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:44:41,430 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:44:41,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:41,564 INFO L93 Difference]: Finished difference Result 11510 states and 29245 transitions. [2021-06-05 00:44:41,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:41,564 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:41,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:41,573 INFO L225 Difference]: With dead ends: 11510 [2021-06-05 00:44:41,573 INFO L226 Difference]: Without dead ends: 11510 [2021-06-05 00:44:41,574 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1221.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:41,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11510 states. [2021-06-05 00:44:41,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11510 to 5214. [2021-06-05 00:44:41,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5214 states, 5212 states have (on average 2.638910207214121) internal successors, (13754), 5213 states have internal predecessors, (13754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:41,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5214 states to 5214 states and 13754 transitions. [2021-06-05 00:44:41,647 INFO L78 Accepts]: Start accepts. Automaton has 5214 states and 13754 transitions. Word has length 114 [2021-06-05 00:44:41,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:41,647 INFO L482 AbstractCegarLoop]: Abstraction has 5214 states and 13754 transitions. [2021-06-05 00:44:41,647 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:41,647 INFO L276 IsEmpty]: Start isEmpty. Operand 5214 states and 13754 transitions. [2021-06-05 00:44:41,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:41,651 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:41,651 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:41,651 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2021-06-05 00:44:41,651 INFO L430 AbstractCegarLoop]: === Iteration 343 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:41,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:41,651 INFO L82 PathProgramCache]: Analyzing trace with hash -2074383072, now seen corresponding path program 337 times [2021-06-05 00:44:41,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:41,651 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821517012] [2021-06-05 00:44:41,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:41,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:41,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:41,960 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:41,960 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821517012] [2021-06-05 00:44:41,960 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821517012] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:41,960 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:41,960 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:41,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220821595] [2021-06-05 00:44:41,960 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:41,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:41,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:41,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:41,960 INFO L87 Difference]: Start difference. First operand 5214 states and 13754 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:42,650 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:44:42,807 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:44:42,966 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:44:43,145 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:44:43,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:43,267 INFO L93 Difference]: Finished difference Result 11346 states and 28843 transitions. [2021-06-05 00:44:43,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:43,267 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:43,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:43,276 INFO L225 Difference]: With dead ends: 11346 [2021-06-05 00:44:43,276 INFO L226 Difference]: Without dead ends: 11346 [2021-06-05 00:44:43,276 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1225.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:43,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11346 states. [2021-06-05 00:44:43,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11346 to 5198. [2021-06-05 00:44:43,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5198 states, 5196 states have (on average 2.638183217859892) internal successors, (13708), 5197 states have internal predecessors, (13708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:43,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5198 states to 5198 states and 13708 transitions. [2021-06-05 00:44:43,353 INFO L78 Accepts]: Start accepts. Automaton has 5198 states and 13708 transitions. Word has length 114 [2021-06-05 00:44:43,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:43,353 INFO L482 AbstractCegarLoop]: Abstraction has 5198 states and 13708 transitions. [2021-06-05 00:44:43,353 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:43,353 INFO L276 IsEmpty]: Start isEmpty. Operand 5198 states and 13708 transitions. [2021-06-05 00:44:43,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:43,357 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:43,357 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:43,357 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2021-06-05 00:44:43,357 INFO L430 AbstractCegarLoop]: === Iteration 344 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:43,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:43,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1063766920, now seen corresponding path program 338 times [2021-06-05 00:44:43,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:43,357 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005892504] [2021-06-05 00:44:43,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:43,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:43,653 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:43,653 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005892504] [2021-06-05 00:44:43,653 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005892504] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:43,653 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:43,653 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:43,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477885929] [2021-06-05 00:44:43,654 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:43,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:43,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:43,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:43,654 INFO L87 Difference]: Start difference. First operand 5198 states and 13708 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:44,348 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:44:44,483 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:44:44,655 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:44:44,847 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:44:44,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:44,954 INFO L93 Difference]: Finished difference Result 8404 states and 21415 transitions. [2021-06-05 00:44:44,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:44,955 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:44,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:44,961 INFO L225 Difference]: With dead ends: 8404 [2021-06-05 00:44:44,961 INFO L226 Difference]: Without dead ends: 8404 [2021-06-05 00:44:44,961 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1214.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:44,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8404 states. [2021-06-05 00:44:45,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8404 to 5134. [2021-06-05 00:44:45,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5134 states, 5132 states have (on average 2.6352299298519095) internal successors, (13524), 5133 states have internal predecessors, (13524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:45,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5134 states to 5134 states and 13524 transitions. [2021-06-05 00:44:45,024 INFO L78 Accepts]: Start accepts. Automaton has 5134 states and 13524 transitions. Word has length 114 [2021-06-05 00:44:45,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:45,024 INFO L482 AbstractCegarLoop]: Abstraction has 5134 states and 13524 transitions. [2021-06-05 00:44:45,024 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:45,025 INFO L276 IsEmpty]: Start isEmpty. Operand 5134 states and 13524 transitions. [2021-06-05 00:44:45,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:45,028 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:45,028 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:45,028 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2021-06-05 00:44:45,028 INFO L430 AbstractCegarLoop]: === Iteration 345 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:45,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:45,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1421476510, now seen corresponding path program 339 times [2021-06-05 00:44:45,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:45,029 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546062603] [2021-06-05 00:44:45,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:45,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:45,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:45,332 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:45,332 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546062603] [2021-06-05 00:44:45,333 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546062603] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:45,333 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:45,333 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:45,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806543866] [2021-06-05 00:44:45,333 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:45,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:45,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:45,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:45,333 INFO L87 Difference]: Start difference. First operand 5134 states and 13524 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:46,003 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:44:46,156 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:44:46,323 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:44:46,496 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:44:46,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:46,616 INFO L93 Difference]: Finished difference Result 11990 states and 30577 transitions. [2021-06-05 00:44:46,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:46,616 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:46,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:46,625 INFO L225 Difference]: With dead ends: 11990 [2021-06-05 00:44:46,626 INFO L226 Difference]: Without dead ends: 11990 [2021-06-05 00:44:46,626 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1223.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:46,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11990 states. [2021-06-05 00:44:46,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11990 to 5198. [2021-06-05 00:44:46,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5198 states, 5196 states have (on average 2.638183217859892) internal successors, (13708), 5197 states have internal predecessors, (13708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:46,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5198 states to 5198 states and 13708 transitions. [2021-06-05 00:44:46,702 INFO L78 Accepts]: Start accepts. Automaton has 5198 states and 13708 transitions. Word has length 114 [2021-06-05 00:44:46,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:46,702 INFO L482 AbstractCegarLoop]: Abstraction has 5198 states and 13708 transitions. [2021-06-05 00:44:46,702 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:46,702 INFO L276 IsEmpty]: Start isEmpty. Operand 5198 states and 13708 transitions. [2021-06-05 00:44:46,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:46,706 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:46,706 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:46,706 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2021-06-05 00:44:46,706 INFO L430 AbstractCegarLoop]: === Iteration 346 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:46,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:46,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1670023490, now seen corresponding path program 340 times [2021-06-05 00:44:46,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:46,706 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232710142] [2021-06-05 00:44:46,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:46,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:47,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:47,003 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:47,003 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232710142] [2021-06-05 00:44:47,003 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232710142] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:47,003 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:47,003 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:47,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158698716] [2021-06-05 00:44:47,004 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:47,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:47,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:47,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:47,004 INFO L87 Difference]: Start difference. First operand 5198 states and 13708 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:47,702 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:44:47,862 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:44:48,022 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:44:48,199 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:44:48,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:48,323 INFO L93 Difference]: Finished difference Result 11826 states and 30175 transitions. [2021-06-05 00:44:48,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:48,324 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:48,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:48,334 INFO L225 Difference]: With dead ends: 11826 [2021-06-05 00:44:48,334 INFO L226 Difference]: Without dead ends: 11826 [2021-06-05 00:44:48,335 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1222.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:48,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11826 states. [2021-06-05 00:44:48,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11826 to 5182. [2021-06-05 00:44:48,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5182 states, 5180 states have (on average 2.6374517374517374) internal successors, (13662), 5181 states have internal predecessors, (13662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:48,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5182 states to 5182 states and 13662 transitions. [2021-06-05 00:44:48,417 INFO L78 Accepts]: Start accepts. Automaton has 5182 states and 13662 transitions. Word has length 114 [2021-06-05 00:44:48,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:48,417 INFO L482 AbstractCegarLoop]: Abstraction has 5182 states and 13662 transitions. [2021-06-05 00:44:48,417 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:48,418 INFO L276 IsEmpty]: Start isEmpty. Operand 5182 states and 13662 transitions. [2021-06-05 00:44:48,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:48,421 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:48,421 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:48,421 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2021-06-05 00:44:48,422 INFO L430 AbstractCegarLoop]: === Iteration 347 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:48,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:48,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1468126502, now seen corresponding path program 341 times [2021-06-05 00:44:48,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:48,422 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311576189] [2021-06-05 00:44:48,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:48,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:48,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:48,732 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:48,732 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311576189] [2021-06-05 00:44:48,732 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311576189] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:48,732 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:48,732 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:48,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088013035] [2021-06-05 00:44:48,732 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:48,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:48,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:48,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:48,732 INFO L87 Difference]: Start difference. First operand 5182 states and 13662 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:49,409 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:44:49,543 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:44:49,716 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:44:49,897 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:44:50,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:50,017 INFO L93 Difference]: Finished difference Result 12114 states and 31003 transitions. [2021-06-05 00:44:50,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:50,017 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:50,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:50,027 INFO L225 Difference]: With dead ends: 12114 [2021-06-05 00:44:50,027 INFO L226 Difference]: Without dead ends: 12114 [2021-06-05 00:44:50,028 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1214.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:50,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12114 states. [2021-06-05 00:44:50,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12114 to 5150. [2021-06-05 00:44:50,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5150 states, 5148 states have (on average 2.6359751359751358) internal successors, (13570), 5149 states have internal predecessors, (13570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:50,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5150 states to 5150 states and 13570 transitions. [2021-06-05 00:44:50,126 INFO L78 Accepts]: Start accepts. Automaton has 5150 states and 13570 transitions. Word has length 114 [2021-06-05 00:44:50,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:50,126 INFO L482 AbstractCegarLoop]: Abstraction has 5150 states and 13570 transitions. [2021-06-05 00:44:50,126 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:50,126 INFO L276 IsEmpty]: Start isEmpty. Operand 5150 states and 13570 transitions. [2021-06-05 00:44:50,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:50,130 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:50,130 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:50,130 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2021-06-05 00:44:50,130 INFO L430 AbstractCegarLoop]: === Iteration 348 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:50,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:50,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1118657656, now seen corresponding path program 342 times [2021-06-05 00:44:50,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:50,130 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684257572] [2021-06-05 00:44:50,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:50,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:50,438 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:50,438 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684257572] [2021-06-05 00:44:50,438 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684257572] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:50,438 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:50,438 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:50,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715801918] [2021-06-05 00:44:50,439 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:50,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:50,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:50,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:50,439 INFO L87 Difference]: Start difference. First operand 5150 states and 13570 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:51,258 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:44:51,434 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:44:51,612 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:44:51,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:51,733 INFO L93 Difference]: Finished difference Result 8756 states and 22411 transitions. [2021-06-05 00:44:51,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:51,733 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:51,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:51,740 INFO L225 Difference]: With dead ends: 8756 [2021-06-05 00:44:51,740 INFO L226 Difference]: Without dead ends: 8756 [2021-06-05 00:44:51,740 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1204.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:51,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8756 states. [2021-06-05 00:44:51,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8756 to 5118. [2021-06-05 00:44:51,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5118 states, 5116 states have (on average 2.6344800625488665) internal successors, (13478), 5117 states have internal predecessors, (13478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:51,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5118 states to 5118 states and 13478 transitions. [2021-06-05 00:44:51,801 INFO L78 Accepts]: Start accepts. Automaton has 5118 states and 13478 transitions. Word has length 114 [2021-06-05 00:44:51,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:51,801 INFO L482 AbstractCegarLoop]: Abstraction has 5118 states and 13478 transitions. [2021-06-05 00:44:51,802 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:51,802 INFO L276 IsEmpty]: Start isEmpty. Operand 5118 states and 13478 transitions. [2021-06-05 00:44:51,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:51,805 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:51,805 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:51,805 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2021-06-05 00:44:51,805 INFO L430 AbstractCegarLoop]: === Iteration 349 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:51,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:51,805 INFO L82 PathProgramCache]: Analyzing trace with hash -244247026, now seen corresponding path program 343 times [2021-06-05 00:44:51,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:51,806 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214830052] [2021-06-05 00:44:51,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:51,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:52,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:52,120 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:52,120 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214830052] [2021-06-05 00:44:52,120 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214830052] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:52,120 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:52,120 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:52,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426191814] [2021-06-05 00:44:52,120 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:52,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:52,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:52,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:52,121 INFO L87 Difference]: Start difference. First operand 5118 states and 13478 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:52,807 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:44:52,977 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:44:53,145 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 00:44:53,322 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 00:44:53,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:53,432 INFO L93 Difference]: Finished difference Result 7060 states and 17986 transitions. [2021-06-05 00:44:53,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:53,433 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:53,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:53,437 INFO L225 Difference]: With dead ends: 7060 [2021-06-05 00:44:53,438 INFO L226 Difference]: Without dead ends: 7060 [2021-06-05 00:44:53,438 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1250.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:53,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7060 states. [2021-06-05 00:44:53,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7060 to 5010. [2021-06-05 00:44:53,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5010 states, 5008 states have (on average 2.6293929712460065) internal successors, (13168), 5009 states have internal predecessors, (13168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:53,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5010 states to 5010 states and 13168 transitions. [2021-06-05 00:44:53,495 INFO L78 Accepts]: Start accepts. Automaton has 5010 states and 13168 transitions. Word has length 114 [2021-06-05 00:44:53,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:53,495 INFO L482 AbstractCegarLoop]: Abstraction has 5010 states and 13168 transitions. [2021-06-05 00:44:53,495 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:53,495 INFO L276 IsEmpty]: Start isEmpty. Operand 5010 states and 13168 transitions. [2021-06-05 00:44:53,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:53,499 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:53,499 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:53,499 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2021-06-05 00:44:53,499 INFO L430 AbstractCegarLoop]: === Iteration 350 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:53,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:53,499 INFO L82 PathProgramCache]: Analyzing trace with hash -492794006, now seen corresponding path program 344 times [2021-06-05 00:44:53,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:53,499 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235495555] [2021-06-05 00:44:53,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:53,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:53,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:53,814 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:53,814 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235495555] [2021-06-05 00:44:53,814 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235495555] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:53,814 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:53,815 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:53,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147073197] [2021-06-05 00:44:53,815 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:53,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:53,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:53,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:53,815 INFO L87 Difference]: Start difference. First operand 5010 states and 13168 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:54,501 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:44:54,656 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 00:44:54,816 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:44:54,995 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:44:55,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:55,096 INFO L93 Difference]: Finished difference Result 6896 states and 17584 transitions. [2021-06-05 00:44:55,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:55,097 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:55,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:55,102 INFO L225 Difference]: With dead ends: 6896 [2021-06-05 00:44:55,102 INFO L226 Difference]: Without dead ends: 6896 [2021-06-05 00:44:55,102 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1230.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:55,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6896 states. [2021-06-05 00:44:55,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6896 to 4994. [2021-06-05 00:44:55,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4994 states, 4992 states have (on average 2.628605769230769) internal successors, (13122), 4993 states have internal predecessors, (13122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:55,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4994 states to 4994 states and 13122 transitions. [2021-06-05 00:44:55,162 INFO L78 Accepts]: Start accepts. Automaton has 4994 states and 13122 transitions. Word has length 114 [2021-06-05 00:44:55,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:55,162 INFO L482 AbstractCegarLoop]: Abstraction has 4994 states and 13122 transitions. [2021-06-05 00:44:55,162 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:55,162 INFO L276 IsEmpty]: Start isEmpty. Operand 4994 states and 13122 transitions. [2021-06-05 00:44:55,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:55,166 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:55,166 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:55,166 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2021-06-05 00:44:55,166 INFO L430 AbstractCegarLoop]: === Iteration 351 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:55,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:55,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1649611310, now seen corresponding path program 345 times [2021-06-05 00:44:55,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:55,166 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238530205] [2021-06-05 00:44:55,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:55,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:55,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:55,487 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:55,487 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238530205] [2021-06-05 00:44:55,487 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238530205] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:55,488 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:55,488 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:55,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036000811] [2021-06-05 00:44:55,488 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:55,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:55,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:55,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:55,488 INFO L87 Difference]: Start difference. First operand 4994 states and 13122 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:56,194 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 00:44:56,327 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:44:56,500 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:44:56,682 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:44:56,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:56,785 INFO L93 Difference]: Finished difference Result 7184 states and 18412 transitions. [2021-06-05 00:44:56,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:56,785 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:56,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:56,790 INFO L225 Difference]: With dead ends: 7184 [2021-06-05 00:44:56,790 INFO L226 Difference]: Without dead ends: 7184 [2021-06-05 00:44:56,791 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1232.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:56,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7184 states. [2021-06-05 00:44:56,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7184 to 4962. [2021-06-05 00:44:56,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4962 states, 4960 states have (on average 2.627016129032258) internal successors, (13030), 4961 states have internal predecessors, (13030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:56,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4962 states to 4962 states and 13030 transitions. [2021-06-05 00:44:56,845 INFO L78 Accepts]: Start accepts. Automaton has 4962 states and 13030 transitions. Word has length 114 [2021-06-05 00:44:56,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:56,846 INFO L482 AbstractCegarLoop]: Abstraction has 4962 states and 13030 transitions. [2021-06-05 00:44:56,846 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:56,846 INFO L276 IsEmpty]: Start isEmpty. Operand 4962 states and 13030 transitions. [2021-06-05 00:44:56,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:56,849 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:56,849 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:56,849 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2021-06-05 00:44:56,849 INFO L430 AbstractCegarLoop]: === Iteration 352 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:56,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:56,850 INFO L82 PathProgramCache]: Analyzing trace with hash 58571828, now seen corresponding path program 346 times [2021-06-05 00:44:56,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:56,850 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061995527] [2021-06-05 00:44:56,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:57,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:57,187 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:57,188 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061995527] [2021-06-05 00:44:57,188 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061995527] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:57,188 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:57,188 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:57,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514280037] [2021-06-05 00:44:57,188 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:57,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:57,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:57,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:57,188 INFO L87 Difference]: Start difference. First operand 4962 states and 13030 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:57,992 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:44:58,165 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:44:58,347 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:44:58,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:58,450 INFO L93 Difference]: Finished difference Result 7472 states and 19240 transitions. [2021-06-05 00:44:58,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:44:58,451 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:44:58,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:58,456 INFO L225 Difference]: With dead ends: 7472 [2021-06-05 00:44:58,456 INFO L226 Difference]: Without dead ends: 7472 [2021-06-05 00:44:58,457 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1238.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:44:58,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7472 states. [2021-06-05 00:44:58,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7472 to 4946. [2021-06-05 00:44:58,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4946 states, 4944 states have (on average 2.6262135922330097) internal successors, (12984), 4945 states have internal predecessors, (12984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:58,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4946 states to 4946 states and 12984 transitions. [2021-06-05 00:44:58,528 INFO L78 Accepts]: Start accepts. Automaton has 4946 states and 12984 transitions. Word has length 114 [2021-06-05 00:44:58,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:58,528 INFO L482 AbstractCegarLoop]: Abstraction has 4946 states and 12984 transitions. [2021-06-05 00:44:58,528 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:58,528 INFO L276 IsEmpty]: Start isEmpty. Operand 4946 states and 12984 transitions. [2021-06-05 00:44:58,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:44:58,532 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:58,532 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:58,532 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2021-06-05 00:44:58,532 INFO L430 AbstractCegarLoop]: === Iteration 353 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:58,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:58,532 INFO L82 PathProgramCache]: Analyzing trace with hash -960210266, now seen corresponding path program 347 times [2021-06-05 00:44:58,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:58,532 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920619027] [2021-06-05 00:44:58,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:58,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:58,856 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:58,856 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920619027] [2021-06-05 00:44:58,856 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920619027] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:58,856 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:58,856 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:44:58,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800144847] [2021-06-05 00:44:58,856 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:44:58,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:58,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:44:58,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:44:58,856 INFO L87 Difference]: Start difference. First operand 4946 states and 12984 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:59,651 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 00:44:59,821 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 00:44:59,999 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 00:45:00,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:00,090 INFO L93 Difference]: Finished difference Result 3762 states and 9652 transitions. [2021-06-05 00:45:00,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:45:00,090 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:45:00,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:00,093 INFO L225 Difference]: With dead ends: 3762 [2021-06-05 00:45:00,093 INFO L226 Difference]: Without dead ends: 3762 [2021-06-05 00:45:00,093 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1213.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 00:45:00,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3762 states. [2021-06-05 00:45:00,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3762 to 3282. [2021-06-05 00:45:00,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3282 states, 3280 states have (on average 2.551219512195122) internal successors, (8368), 3281 states have internal predecessors, (8368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:00,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3282 states to 3282 states and 8368 transitions. [2021-06-05 00:45:00,124 INFO L78 Accepts]: Start accepts. Automaton has 3282 states and 8368 transitions. Word has length 114 [2021-06-05 00:45:00,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:00,124 INFO L482 AbstractCegarLoop]: Abstraction has 3282 states and 8368 transitions. [2021-06-05 00:45:00,124 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:00,124 INFO L276 IsEmpty]: Start isEmpty. Operand 3282 states and 8368 transitions. [2021-06-05 00:45:00,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 00:45:00,127 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:00,127 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:00,127 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2021-06-05 00:45:00,127 INFO L430 AbstractCegarLoop]: === Iteration 354 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:45:00,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:00,127 INFO L82 PathProgramCache]: Analyzing trace with hash -2081293722, now seen corresponding path program 348 times [2021-06-05 00:45:00,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:00,127 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674758283] [2021-06-05 00:45:00,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:00,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:00,398 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:00,398 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674758283] [2021-06-05 00:45:00,398 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674758283] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:00,398 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:00,398 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 00:45:00,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861661856] [2021-06-05 00:45:00,398 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 00:45:00,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:00,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 00:45:00,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:45:00,399 INFO L87 Difference]: Start difference. First operand 3282 states and 8368 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:01,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:01,278 INFO L93 Difference]: Finished difference Result 3614 states and 9038 transitions. [2021-06-05 00:45:01,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 00:45:01,278 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 00:45:01,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:01,292 INFO L225 Difference]: With dead ends: 3614 [2021-06-05 00:45:01,293 INFO L226 Difference]: Without dead ends: 3614 [2021-06-05 00:45:01,293 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 793.1ms TimeCoverageRelationStatistics Valid=316, Invalid=944, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 00:45:01,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3614 states. [2021-06-05 00:45:01,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3614 to 2995. [2021-06-05 00:45:01,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2995 states, 2994 states have (on average 2.5935203740814963) internal successors, (7765), 2994 states have internal predecessors, (7765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:01,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2995 states to 2995 states and 7765 transitions. [2021-06-05 00:45:01,321 INFO L78 Accepts]: Start accepts. Automaton has 2995 states and 7765 transitions. Word has length 114 [2021-06-05 00:45:01,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:01,321 INFO L482 AbstractCegarLoop]: Abstraction has 2995 states and 7765 transitions. [2021-06-05 00:45:01,321 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:01,321 INFO L276 IsEmpty]: Start isEmpty. Operand 2995 states and 7765 transitions. [2021-06-05 00:45:01,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-05 00:45:01,323 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:01,323 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:01,324 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2021-06-05 00:45:01,324 INFO L430 AbstractCegarLoop]: === Iteration 355 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:45:01,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:01,324 INFO L82 PathProgramCache]: Analyzing trace with hash -670494409, now seen corresponding path program 1 times [2021-06-05 00:45:01,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:01,324 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824211272] [2021-06-05 00:45:01,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:01,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:02,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:02,717 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:02,717 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824211272] [2021-06-05 00:45:02,717 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824211272] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:02,717 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:02,717 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 00:45:02,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882693007] [2021-06-05 00:45:02,717 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 00:45:02,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:02,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 00:45:02,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1103, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:45:02,718 INFO L87 Difference]: Start difference. First operand 2995 states and 7765 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:03,583 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2021-06-05 00:45:03,766 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-06-05 00:45:03,973 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 69 [2021-06-05 00:45:04,418 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 73 [2021-06-05 00:45:04,684 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 78 [2021-06-05 00:45:04,974 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 83 [2021-06-05 00:45:05,348 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-06-05 00:45:05,741 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 92 [2021-06-05 00:45:06,319 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 94 [2021-06-05 00:45:08,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:08,018 INFO L93 Difference]: Finished difference Result 4106 states and 10488 transitions. [2021-06-05 00:45:08,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:45:08,018 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-05 00:45:08,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:08,022 INFO L225 Difference]: With dead ends: 4106 [2021-06-05 00:45:08,022 INFO L226 Difference]: Without dead ends: 3840 [2021-06-05 00:45:08,022 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 720 ImplicationChecksByTransitivity, 4832.9ms TimeCoverageRelationStatistics Valid=754, Invalid=3668, Unknown=0, NotChecked=0, Total=4422 [2021-06-05 00:45:08,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3840 states. [2021-06-05 00:45:08,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3840 to 3499. [2021-06-05 00:45:08,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3499 states, 3498 states have (on average 2.6040594625500284) internal successors, (9109), 3498 states have internal predecessors, (9109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:08,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3499 states to 3499 states and 9109 transitions. [2021-06-05 00:45:08,066 INFO L78 Accepts]: Start accepts. Automaton has 3499 states and 9109 transitions. Word has length 120 [2021-06-05 00:45:08,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:08,066 INFO L482 AbstractCegarLoop]: Abstraction has 3499 states and 9109 transitions. [2021-06-05 00:45:08,066 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:08,066 INFO L276 IsEmpty]: Start isEmpty. Operand 3499 states and 9109 transitions. [2021-06-05 00:45:08,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-05 00:45:08,069 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:08,069 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:08,069 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2021-06-05 00:45:08,069 INFO L430 AbstractCegarLoop]: === Iteration 356 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:45:08,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:08,069 INFO L82 PathProgramCache]: Analyzing trace with hash -801361073, now seen corresponding path program 2 times [2021-06-05 00:45:08,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:08,069 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140454066] [2021-06-05 00:45:08,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:08,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:09,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:09,354 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:09,354 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140454066] [2021-06-05 00:45:09,354 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140454066] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:09,354 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:09,354 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 00:45:09,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758415681] [2021-06-05 00:45:09,355 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 00:45:09,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:09,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 00:45:09,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:45:09,355 INFO L87 Difference]: Start difference. First operand 3499 states and 9109 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:10,233 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2021-06-05 00:45:10,410 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-06-05 00:45:10,618 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 69 [2021-06-05 00:45:11,055 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 73 [2021-06-05 00:45:11,316 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 78 [2021-06-05 00:45:11,602 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 83 [2021-06-05 00:45:11,974 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-06-05 00:45:12,362 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 92 [2021-06-05 00:45:12,905 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 94 [2021-06-05 00:45:14,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:14,652 INFO L93 Difference]: Finished difference Result 3937 states and 10031 transitions. [2021-06-05 00:45:14,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 00:45:14,652 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-05 00:45:14,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:14,655 INFO L225 Difference]: With dead ends: 3937 [2021-06-05 00:45:14,655 INFO L226 Difference]: Without dead ends: 3804 [2021-06-05 00:45:14,655 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 746 ImplicationChecksByTransitivity, 4855.2ms TimeCoverageRelationStatistics Valid=758, Invalid=3798, Unknown=0, NotChecked=0, Total=4556 [2021-06-05 00:45:14,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3804 states. [2021-06-05 00:45:14,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3804 to 3463. [2021-06-05 00:45:14,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3463 states, 3462 states have (on average 2.603408434430965) internal successors, (9013), 3462 states have internal predecessors, (9013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:14,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3463 states to 3463 states and 9013 transitions. [2021-06-05 00:45:14,687 INFO L78 Accepts]: Start accepts. Automaton has 3463 states and 9013 transitions. Word has length 120 [2021-06-05 00:45:14,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:14,687 INFO L482 AbstractCegarLoop]: Abstraction has 3463 states and 9013 transitions. [2021-06-05 00:45:14,687 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:14,687 INFO L276 IsEmpty]: Start isEmpty. Operand 3463 states and 9013 transitions. [2021-06-05 00:45:14,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-05 00:45:14,690 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:14,690 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:14,690 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2021-06-05 00:45:14,690 INFO L430 AbstractCegarLoop]: === Iteration 357 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:45:14,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:14,691 INFO L82 PathProgramCache]: Analyzing trace with hash -737052195, now seen corresponding path program 3 times [2021-06-05 00:45:14,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:14,691 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784802608] [2021-06-05 00:45:14,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:15,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:15,976 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:15,976 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784802608] [2021-06-05 00:45:15,976 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784802608] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:15,976 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:15,976 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 00:45:15,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720364393] [2021-06-05 00:45:15,976 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 00:45:15,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:15,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 00:45:15,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:45:15,977 INFO L87 Difference]: Start difference. First operand 3463 states and 9013 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:16,887 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2021-06-05 00:45:17,065 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-06-05 00:45:17,273 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 69 [2021-06-05 00:45:17,708 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 73 [2021-06-05 00:45:17,970 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 78 [2021-06-05 00:45:18,259 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 83 [2021-06-05 00:45:18,634 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-06-05 00:45:19,031 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 92 [2021-06-05 00:45:19,584 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 94 [2021-06-05 00:45:21,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:21,253 INFO L93 Difference]: Finished difference Result 3867 states and 9878 transitions. [2021-06-05 00:45:21,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:45:21,254 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-05 00:45:21,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:21,256 INFO L225 Difference]: With dead ends: 3867 [2021-06-05 00:45:21,256 INFO L226 Difference]: Without dead ends: 3554 [2021-06-05 00:45:21,256 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 683 ImplicationChecksByTransitivity, 4754.7ms TimeCoverageRelationStatistics Valid=720, Invalid=3570, Unknown=0, NotChecked=0, Total=4290 [2021-06-05 00:45:21,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3554 states. [2021-06-05 00:45:21,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3554 to 3295. [2021-06-05 00:45:21,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3295 states, 3294 states have (on average 2.612325440194293) internal successors, (8605), 3294 states have internal predecessors, (8605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:21,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3295 states to 3295 states and 8605 transitions. [2021-06-05 00:45:21,288 INFO L78 Accepts]: Start accepts. Automaton has 3295 states and 8605 transitions. Word has length 120 [2021-06-05 00:45:21,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:21,288 INFO L482 AbstractCegarLoop]: Abstraction has 3295 states and 8605 transitions. [2021-06-05 00:45:21,288 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:21,288 INFO L276 IsEmpty]: Start isEmpty. Operand 3295 states and 8605 transitions. [2021-06-05 00:45:21,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-05 00:45:21,291 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:21,291 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:21,291 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2021-06-05 00:45:21,291 INFO L430 AbstractCegarLoop]: === Iteration 358 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:45:21,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:21,291 INFO L82 PathProgramCache]: Analyzing trace with hash 170838521, now seen corresponding path program 4 times [2021-06-05 00:45:21,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:21,291 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047920349] [2021-06-05 00:45:21,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:21,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:22,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:22,174 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:22,174 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047920349] [2021-06-05 00:45:22,174 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047920349] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:22,174 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:22,174 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 00:45:22,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235779824] [2021-06-05 00:45:22,174 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 00:45:22,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:22,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 00:45:22,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:45:22,175 INFO L87 Difference]: Start difference. First operand 3295 states and 8605 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:23,273 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-06-05 00:45:23,646 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 72 [2021-06-05 00:45:23,847 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 76 [2021-06-05 00:45:24,078 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 80 [2021-06-05 00:45:24,392 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 84 [2021-06-05 00:45:24,707 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 88 [2021-06-05 00:45:25,154 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 90 [2021-06-05 00:45:25,636 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 93 [2021-06-05 00:45:26,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:26,757 INFO L93 Difference]: Finished difference Result 3648 states and 9359 transitions. [2021-06-05 00:45:26,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:45:26,757 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-05 00:45:26,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:26,760 INFO L225 Difference]: With dead ends: 3648 [2021-06-05 00:45:26,760 INFO L226 Difference]: Without dead ends: 3489 [2021-06-05 00:45:26,761 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 4020.4ms TimeCoverageRelationStatistics Valid=743, Invalid=3547, Unknown=0, NotChecked=0, Total=4290 [2021-06-05 00:45:26,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3489 states. [2021-06-05 00:45:26,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3489 to 3283. [2021-06-05 00:45:26,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3283 states, 3282 states have (on average 2.6145642900670323) internal successors, (8581), 3282 states have internal predecessors, (8581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:26,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3283 states to 3283 states and 8581 transitions. [2021-06-05 00:45:26,792 INFO L78 Accepts]: Start accepts. Automaton has 3283 states and 8581 transitions. Word has length 120 [2021-06-05 00:45:26,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:26,792 INFO L482 AbstractCegarLoop]: Abstraction has 3283 states and 8581 transitions. [2021-06-05 00:45:26,792 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:26,792 INFO L276 IsEmpty]: Start isEmpty. Operand 3283 states and 8581 transitions. [2021-06-05 00:45:26,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-05 00:45:26,794 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:26,794 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:26,794 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2021-06-05 00:45:26,794 INFO L430 AbstractCegarLoop]: === Iteration 359 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:45:26,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:26,795 INFO L82 PathProgramCache]: Analyzing trace with hash 168565253, now seen corresponding path program 5 times [2021-06-05 00:45:26,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:26,795 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34274643] [2021-06-05 00:45:26,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:27,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:27,662 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:27,662 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34274643] [2021-06-05 00:45:27,662 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34274643] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:27,662 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:27,662 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 00:45:27,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557924294] [2021-06-05 00:45:27,663 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 00:45:27,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:27,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 00:45:27,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:45:27,663 INFO L87 Difference]: Start difference. First operand 3283 states and 8581 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:28,749 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-06-05 00:45:29,120 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 72 [2021-06-05 00:45:29,318 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 76 [2021-06-05 00:45:29,546 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 80 [2021-06-05 00:45:29,844 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 84 [2021-06-05 00:45:30,157 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 88 [2021-06-05 00:45:30,802 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 91 [2021-06-05 00:45:31,104 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 93 [2021-06-05 00:45:32,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:32,156 INFO L93 Difference]: Finished difference Result 3682 states and 9417 transitions. [2021-06-05 00:45:32,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 00:45:32,157 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-05 00:45:32,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:32,159 INFO L225 Difference]: With dead ends: 3682 [2021-06-05 00:45:32,159 INFO L226 Difference]: Without dead ends: 3459 [2021-06-05 00:45:32,160 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 3915.5ms TimeCoverageRelationStatistics Valid=724, Invalid=3436, Unknown=0, NotChecked=0, Total=4160 [2021-06-05 00:45:32,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3459 states. [2021-06-05 00:45:32,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3459 to 3249. [2021-06-05 00:45:32,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3249 states, 3248 states have (on average 2.6096059113300494) internal successors, (8476), 3248 states have internal predecessors, (8476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:32,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3249 states to 3249 states and 8476 transitions. [2021-06-05 00:45:32,190 INFO L78 Accepts]: Start accepts. Automaton has 3249 states and 8476 transitions. Word has length 120 [2021-06-05 00:45:32,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:32,190 INFO L482 AbstractCegarLoop]: Abstraction has 3249 states and 8476 transitions. [2021-06-05 00:45:32,190 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:32,190 INFO L276 IsEmpty]: Start isEmpty. Operand 3249 states and 8476 transitions. [2021-06-05 00:45:32,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-05 00:45:32,192 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:32,192 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:32,192 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2021-06-05 00:45:32,192 INFO L430 AbstractCegarLoop]: === Iteration 360 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:45:32,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:32,193 INFO L82 PathProgramCache]: Analyzing trace with hash 522859321, now seen corresponding path program 6 times [2021-06-05 00:45:32,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:32,193 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174448307] [2021-06-05 00:45:32,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:33,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:33,066 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:33,066 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174448307] [2021-06-05 00:45:33,066 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174448307] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:33,066 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:33,067 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 00:45:33,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140152402] [2021-06-05 00:45:33,067 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 00:45:33,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:33,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 00:45:33,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1103, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:45:33,067 INFO L87 Difference]: Start difference. First operand 3249 states and 8476 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:34,183 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 67 [2021-06-05 00:45:34,553 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 71 [2021-06-05 00:45:34,754 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-06-05 00:45:34,983 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 79 [2021-06-05 00:45:35,282 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 83 [2021-06-05 00:45:35,707 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 85 [2021-06-05 00:45:36,003 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 89 [2021-06-05 00:45:37,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:37,770 INFO L93 Difference]: Finished difference Result 4095 states and 10439 transitions. [2021-06-05 00:45:37,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-05 00:45:37,770 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-05 00:45:37,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:37,773 INFO L225 Difference]: With dead ends: 4095 [2021-06-05 00:45:37,773 INFO L226 Difference]: Without dead ends: 3829 [2021-06-05 00:45:37,773 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 782 ImplicationChecksByTransitivity, 4101.8ms TimeCoverageRelationStatistics Valid=792, Invalid=3900, Unknown=0, NotChecked=0, Total=4692 [2021-06-05 00:45:37,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3829 states. [2021-06-05 00:45:37,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3829 to 3477. [2021-06-05 00:45:37,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3477 states, 3476 states have (on average 2.5972382048331415) internal successors, (9028), 3476 states have internal predecessors, (9028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:37,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3477 states to 3477 states and 9028 transitions. [2021-06-05 00:45:37,805 INFO L78 Accepts]: Start accepts. Automaton has 3477 states and 9028 transitions. Word has length 120 [2021-06-05 00:45:37,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:37,805 INFO L482 AbstractCegarLoop]: Abstraction has 3477 states and 9028 transitions. [2021-06-05 00:45:37,805 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:37,805 INFO L276 IsEmpty]: Start isEmpty. Operand 3477 states and 9028 transitions. [2021-06-05 00:45:37,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-05 00:45:37,808 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:37,808 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:37,808 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2021-06-05 00:45:37,808 INFO L430 AbstractCegarLoop]: === Iteration 361 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:45:37,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:37,808 INFO L82 PathProgramCache]: Analyzing trace with hash 391992657, now seen corresponding path program 7 times [2021-06-05 00:45:37,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:37,809 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367667988] [2021-06-05 00:45:37,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:37,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:38,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:38,699 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:38,699 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367667988] [2021-06-05 00:45:38,699 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367667988] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:38,699 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:38,699 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 00:45:38,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537516981] [2021-06-05 00:45:38,700 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 00:45:38,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:38,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 00:45:38,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:45:38,700 INFO L87 Difference]: Start difference. First operand 3477 states and 9028 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:39,809 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 67 [2021-06-05 00:45:40,189 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 71 [2021-06-05 00:45:40,392 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-06-05 00:45:40,623 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 79 [2021-06-05 00:45:40,940 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 83 [2021-06-05 00:45:41,379 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 85 [2021-06-05 00:45:41,680 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 89 [2021-06-05 00:45:43,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:43,506 INFO L93 Difference]: Finished difference Result 3926 states and 9982 transitions. [2021-06-05 00:45:43,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-05 00:45:43,506 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-05 00:45:43,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:43,510 INFO L225 Difference]: With dead ends: 3926 [2021-06-05 00:45:43,510 INFO L226 Difference]: Without dead ends: 3793 [2021-06-05 00:45:43,510 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 810 ImplicationChecksByTransitivity, 4141.1ms TimeCoverageRelationStatistics Valid=796, Invalid=4034, Unknown=0, NotChecked=0, Total=4830 [2021-06-05 00:45:43,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3793 states. [2021-06-05 00:45:43,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3793 to 3441. [2021-06-05 00:45:43,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3441 states, 3440 states have (on average 2.5965116279069766) internal successors, (8932), 3440 states have internal predecessors, (8932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:43,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3441 states to 3441 states and 8932 transitions. [2021-06-05 00:45:43,545 INFO L78 Accepts]: Start accepts. Automaton has 3441 states and 8932 transitions. Word has length 120 [2021-06-05 00:45:43,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:43,545 INFO L482 AbstractCegarLoop]: Abstraction has 3441 states and 8932 transitions. [2021-06-05 00:45:43,545 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:43,545 INFO L276 IsEmpty]: Start isEmpty. Operand 3441 states and 8932 transitions. [2021-06-05 00:45:43,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-05 00:45:43,548 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:43,548 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:43,548 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2021-06-05 00:45:43,548 INFO L430 AbstractCegarLoop]: === Iteration 362 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:45:43,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:43,548 INFO L82 PathProgramCache]: Analyzing trace with hash 456301535, now seen corresponding path program 8 times [2021-06-05 00:45:43,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:43,549 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948772867] [2021-06-05 00:45:43,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:44,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:44,444 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:44,444 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948772867] [2021-06-05 00:45:44,445 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948772867] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:44,445 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:44,445 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 00:45:44,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950333024] [2021-06-05 00:45:44,445 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 00:45:44,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:44,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 00:45:44,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:45:44,445 INFO L87 Difference]: Start difference. First operand 3441 states and 8932 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:45,547 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 67 [2021-06-05 00:45:45,923 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 71 [2021-06-05 00:45:46,132 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-06-05 00:45:46,363 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 79 [2021-06-05 00:45:46,665 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 83 [2021-06-05 00:45:47,096 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 85 [2021-06-05 00:45:47,400 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 89 [2021-06-05 00:45:49,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:49,107 INFO L93 Difference]: Finished difference Result 3856 states and 9829 transitions. [2021-06-05 00:45:49,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 00:45:49,107 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-05 00:45:49,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:49,110 INFO L225 Difference]: With dead ends: 3856 [2021-06-05 00:45:49,110 INFO L226 Difference]: Without dead ends: 3543 [2021-06-05 00:45:49,110 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 4063.7ms TimeCoverageRelationStatistics Valid=761, Invalid=3795, Unknown=0, NotChecked=0, Total=4556 [2021-06-05 00:45:49,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3543 states. [2021-06-05 00:45:49,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3543 to 3273. [2021-06-05 00:45:49,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3273 states, 3272 states have (on average 2.6051344743276283) internal successors, (8524), 3272 states have internal predecessors, (8524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:49,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3273 states to 3273 states and 8524 transitions. [2021-06-05 00:45:49,141 INFO L78 Accepts]: Start accepts. Automaton has 3273 states and 8524 transitions. Word has length 120 [2021-06-05 00:45:49,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:49,142 INFO L482 AbstractCegarLoop]: Abstraction has 3273 states and 8524 transitions. [2021-06-05 00:45:49,142 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:49,142 INFO L276 IsEmpty]: Start isEmpty. Operand 3273 states and 8524 transitions. [2021-06-05 00:45:49,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-05 00:45:49,144 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:49,144 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:49,144 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2021-06-05 00:45:49,144 INFO L430 AbstractCegarLoop]: === Iteration 363 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:45:49,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:49,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1364192251, now seen corresponding path program 9 times [2021-06-05 00:45:49,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:49,145 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259679541] [2021-06-05 00:45:49,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:49,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:50,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:50,013 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:50,013 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259679541] [2021-06-05 00:45:50,013 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259679541] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:50,013 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:50,013 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 00:45:50,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232676270] [2021-06-05 00:45:50,013 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 00:45:50,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:50,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 00:45:50,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:45:50,014 INFO L87 Difference]: Start difference. First operand 3273 states and 8524 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:51,112 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-06-05 00:45:51,486 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 72 [2021-06-05 00:45:51,690 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 76 [2021-06-05 00:45:51,921 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 80 [2021-06-05 00:45:52,225 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 84 [2021-06-05 00:45:52,661 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 86 [2021-06-05 00:45:52,956 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 90 [2021-06-05 00:45:53,611 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 93 [2021-06-05 00:45:54,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:54,790 INFO L93 Difference]: Finished difference Result 3636 states and 9309 transitions. [2021-06-05 00:45:54,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 00:45:54,790 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-05 00:45:54,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:54,793 INFO L225 Difference]: With dead ends: 3636 [2021-06-05 00:45:54,793 INFO L226 Difference]: Without dead ends: 3477 [2021-06-05 00:45:54,793 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 726 ImplicationChecksByTransitivity, 4207.1ms TimeCoverageRelationStatistics Valid=786, Invalid=3770, Unknown=0, NotChecked=0, Total=4556 [2021-06-05 00:45:54,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3477 states. [2021-06-05 00:45:54,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3477 to 3261. [2021-06-05 00:45:54,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3261 states, 3260 states have (on average 2.607361963190184) internal successors, (8500), 3260 states have internal predecessors, (8500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:54,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3261 states to 3261 states and 8500 transitions. [2021-06-05 00:45:54,823 INFO L78 Accepts]: Start accepts. Automaton has 3261 states and 8500 transitions. Word has length 120 [2021-06-05 00:45:54,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:54,823 INFO L482 AbstractCegarLoop]: Abstraction has 3261 states and 8500 transitions. [2021-06-05 00:45:54,823 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:54,823 INFO L276 IsEmpty]: Start isEmpty. Operand 3261 states and 8500 transitions. [2021-06-05 00:45:54,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-05 00:45:54,826 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:54,826 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:54,826 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2021-06-05 00:45:54,826 INFO L430 AbstractCegarLoop]: === Iteration 364 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:45:54,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:54,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1835663953, now seen corresponding path program 10 times [2021-06-05 00:45:54,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:54,826 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712298646] [2021-06-05 00:45:54,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:54,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:56,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:56,032 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:56,032 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712298646] [2021-06-05 00:45:56,033 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712298646] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:56,033 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:56,033 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 00:45:56,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952638731] [2021-06-05 00:45:56,033 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 00:45:56,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:56,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 00:45:56,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1103, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:45:56,033 INFO L87 Difference]: Start difference. First operand 3261 states and 8500 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:56,868 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2021-06-05 00:45:57,054 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-06-05 00:45:57,261 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 69 [2021-06-05 00:45:57,675 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 73 [2021-06-05 00:45:57,919 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 78 [2021-06-05 00:45:58,200 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 83 [2021-06-05 00:45:58,553 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-06-05 00:45:59,031 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 90 [2021-06-05 00:46:00,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:00,913 INFO L93 Difference]: Finished difference Result 4179 states and 10646 transitions. [2021-06-05 00:46:00,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 00:46:00,913 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-05 00:46:00,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:00,916 INFO L225 Difference]: With dead ends: 4179 [2021-06-05 00:46:00,916 INFO L226 Difference]: Without dead ends: 3913 [2021-06-05 00:46:00,916 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 765 ImplicationChecksByTransitivity, 4615.4ms TimeCoverageRelationStatistics Valid=752, Invalid=3804, Unknown=0, NotChecked=0, Total=4556 [2021-06-05 00:46:00,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3913 states. [2021-06-05 00:46:00,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3913 to 3525. [2021-06-05 00:46:00,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3525 states, 3524 states have (on average 2.5993189557321226) internal successors, (9160), 3524 states have internal predecessors, (9160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:00,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3525 states to 3525 states and 9160 transitions. [2021-06-05 00:46:00,947 INFO L78 Accepts]: Start accepts. Automaton has 3525 states and 9160 transitions. Word has length 120 [2021-06-05 00:46:00,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:00,948 INFO L482 AbstractCegarLoop]: Abstraction has 3525 states and 9160 transitions. [2021-06-05 00:46:00,948 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:00,948 INFO L276 IsEmpty]: Start isEmpty. Operand 3525 states and 9160 transitions. [2021-06-05 00:46:00,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-05 00:46:00,950 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:00,950 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:00,950 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2021-06-05 00:46:00,950 INFO L430 AbstractCegarLoop]: === Iteration 365 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:46:00,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:00,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1966530617, now seen corresponding path program 11 times [2021-06-05 00:46:00,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:00,951 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178887702] [2021-06-05 00:46:00,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:01,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:01,813 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:01,813 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178887702] [2021-06-05 00:46:01,813 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178887702] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:01,813 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:01,813 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 00:46:01,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506037472] [2021-06-05 00:46:01,813 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 00:46:01,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:01,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 00:46:01,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:46:01,813 INFO L87 Difference]: Start difference. First operand 3525 states and 9160 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:02,770 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2021-06-05 00:46:02,940 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 67 [2021-06-05 00:46:03,320 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 71 [2021-06-05 00:46:03,523 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-06-05 00:46:03,766 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 79 [2021-06-05 00:46:04,068 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 83 [2021-06-05 00:46:04,518 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 85 [2021-06-05 00:46:06,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:06,460 INFO L93 Difference]: Finished difference Result 4010 states and 10189 transitions. [2021-06-05 00:46:06,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-05 00:46:06,460 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-05 00:46:06,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:06,463 INFO L225 Difference]: With dead ends: 4010 [2021-06-05 00:46:06,463 INFO L226 Difference]: Without dead ends: 3877 [2021-06-05 00:46:06,464 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 3905.0ms TimeCoverageRelationStatistics Valid=758, Invalid=3934, Unknown=0, NotChecked=0, Total=4692 [2021-06-05 00:46:06,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3877 states. [2021-06-05 00:46:06,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3877 to 3489. [2021-06-05 00:46:06,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3489 states, 3488 states have (on average 2.5986238532110093) internal successors, (9064), 3488 states have internal predecessors, (9064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:06,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3489 states to 3489 states and 9064 transitions. [2021-06-05 00:46:06,497 INFO L78 Accepts]: Start accepts. Automaton has 3489 states and 9064 transitions. Word has length 120 [2021-06-05 00:46:06,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:06,497 INFO L482 AbstractCegarLoop]: Abstraction has 3489 states and 9064 transitions. [2021-06-05 00:46:06,497 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:06,497 INFO L276 IsEmpty]: Start isEmpty. Operand 3489 states and 9064 transitions. [2021-06-05 00:46:06,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-05 00:46:06,500 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:06,500 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:06,500 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2021-06-05 00:46:06,500 INFO L430 AbstractCegarLoop]: === Iteration 366 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:46:06,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:06,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1902221739, now seen corresponding path program 12 times [2021-06-05 00:46:06,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:06,501 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372831166] [2021-06-05 00:46:06,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:06,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:07,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:07,808 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:07,808 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372831166] [2021-06-05 00:46:07,808 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372831166] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:07,809 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:07,809 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 00:46:07,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439888284] [2021-06-05 00:46:07,809 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 00:46:07,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:07,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 00:46:07,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:46:07,809 INFO L87 Difference]: Start difference. First operand 3489 states and 9064 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:08,659 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2021-06-05 00:46:08,834 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-06-05 00:46:09,042 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 69 [2021-06-05 00:46:09,460 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 73 [2021-06-05 00:46:09,705 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 78 [2021-06-05 00:46:09,988 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 83 [2021-06-05 00:46:10,358 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-06-05 00:46:10,853 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 90 [2021-06-05 00:46:12,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:12,729 INFO L93 Difference]: Finished difference Result 3940 states and 10036 transitions. [2021-06-05 00:46:12,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:46:12,729 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-05 00:46:12,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:12,733 INFO L225 Difference]: With dead ends: 3940 [2021-06-05 00:46:12,733 INFO L226 Difference]: Without dead ends: 3627 [2021-06-05 00:46:12,733 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 725 ImplicationChecksByTransitivity, 4674.0ms TimeCoverageRelationStatistics Valid=723, Invalid=3699, Unknown=0, NotChecked=0, Total=4422 [2021-06-05 00:46:12,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3627 states. [2021-06-05 00:46:12,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3627 to 3321. [2021-06-05 00:46:12,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3321 states, 3320 states have (on average 2.5927710843373495) internal successors, (8608), 3320 states have internal predecessors, (8608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:12,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3321 states to 3321 states and 8608 transitions. [2021-06-05 00:46:12,764 INFO L78 Accepts]: Start accepts. Automaton has 3321 states and 8608 transitions. Word has length 120 [2021-06-05 00:46:12,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:12,764 INFO L482 AbstractCegarLoop]: Abstraction has 3321 states and 8608 transitions. [2021-06-05 00:46:12,764 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:12,764 INFO L276 IsEmpty]: Start isEmpty. Operand 3321 states and 8608 transitions. [2021-06-05 00:46:12,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-05 00:46:12,767 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:12,767 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:12,767 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2021-06-05 00:46:12,767 INFO L430 AbstractCegarLoop]: === Iteration 367 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:46:12,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:12,767 INFO L82 PathProgramCache]: Analyzing trace with hash 127735699, now seen corresponding path program 13 times [2021-06-05 00:46:12,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:12,767 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566139880] [2021-06-05 00:46:12,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:12,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:13,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:13,981 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:13,981 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566139880] [2021-06-05 00:46:13,981 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566139880] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:13,981 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:13,981 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 00:46:13,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56489924] [2021-06-05 00:46:13,981 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 00:46:13,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:13,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 00:46:13,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:46:13,982 INFO L87 Difference]: Start difference. First operand 3321 states and 8608 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:14,972 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-06-05 00:46:15,169 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 71 [2021-06-05 00:46:15,567 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 75 [2021-06-05 00:46:15,802 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 80 [2021-06-05 00:46:16,076 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 84 [2021-06-05 00:46:16,424 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-06-05 00:46:16,922 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 90 [2021-06-05 00:46:17,771 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2021-06-05 00:46:17,930 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2021-06-05 00:46:18,168 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2021-06-05 00:46:18,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:18,905 INFO L93 Difference]: Finished difference Result 3731 states and 9495 transitions. [2021-06-05 00:46:18,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:46:18,906 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-05 00:46:18,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:18,909 INFO L225 Difference]: With dead ends: 3731 [2021-06-05 00:46:18,909 INFO L226 Difference]: Without dead ends: 3511 [2021-06-05 00:46:18,909 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 725 ImplicationChecksByTransitivity, 4600.1ms TimeCoverageRelationStatistics Valid=723, Invalid=3699, Unknown=0, NotChecked=0, Total=4422 [2021-06-05 00:46:18,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3511 states. [2021-06-05 00:46:18,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3511 to 3261. [2021-06-05 00:46:18,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3261 states, 3260 states have (on average 2.603680981595092) internal successors, (8488), 3260 states have internal predecessors, (8488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:18,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3261 states to 3261 states and 8488 transitions. [2021-06-05 00:46:18,940 INFO L78 Accepts]: Start accepts. Automaton has 3261 states and 8488 transitions. Word has length 120 [2021-06-05 00:46:18,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:18,940 INFO L482 AbstractCegarLoop]: Abstraction has 3261 states and 8488 transitions. [2021-06-05 00:46:18,940 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:18,940 INFO L276 IsEmpty]: Start isEmpty. Operand 3261 states and 8488 transitions. [2021-06-05 00:46:18,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-05 00:46:18,943 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:18,943 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:18,943 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable366 [2021-06-05 00:46:18,943 INFO L430 AbstractCegarLoop]: === Iteration 368 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:46:18,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:18,943 INFO L82 PathProgramCache]: Analyzing trace with hash 90759333, now seen corresponding path program 14 times [2021-06-05 00:46:18,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:18,943 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583766370] [2021-06-05 00:46:18,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:18,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:20,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:20,222 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:20,222 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583766370] [2021-06-05 00:46:20,222 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583766370] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:20,222 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:20,222 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 00:46:20,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842660214] [2021-06-05 00:46:20,222 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 00:46:20,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:20,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 00:46:20,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:46:20,223 INFO L87 Difference]: Start difference. First operand 3261 states and 8488 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:21,208 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-06-05 00:46:21,405 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 71 [2021-06-05 00:46:21,817 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 75 [2021-06-05 00:46:22,054 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 80 [2021-06-05 00:46:22,331 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 84 [2021-06-05 00:46:22,690 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-06-05 00:46:23,198 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 90 [2021-06-05 00:46:23,718 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 93 [2021-06-05 00:46:24,040 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 97 [2021-06-05 00:46:24,394 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-06-05 00:46:25,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:25,505 INFO L93 Difference]: Finished difference Result 3598 states and 9215 transitions. [2021-06-05 00:46:25,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 00:46:25,505 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-05 00:46:25,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:25,508 INFO L225 Difference]: With dead ends: 3598 [2021-06-05 00:46:25,508 INFO L226 Difference]: Without dead ends: 3451 [2021-06-05 00:46:25,508 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 731 ImplicationChecksByTransitivity, 5054.6ms TimeCoverageRelationStatistics Valid=786, Invalid=3770, Unknown=0, NotChecked=0, Total=4556 [2021-06-05 00:46:25,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3451 states. [2021-06-05 00:46:25,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3451 to 3263. [2021-06-05 00:46:25,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3263 states, 3262 states have (on average 2.6030042918454934) internal successors, (8491), 3262 states have internal predecessors, (8491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:25,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3263 states to 3263 states and 8491 transitions. [2021-06-05 00:46:25,539 INFO L78 Accepts]: Start accepts. Automaton has 3263 states and 8491 transitions. Word has length 120 [2021-06-05 00:46:25,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:25,539 INFO L482 AbstractCegarLoop]: Abstraction has 3263 states and 8491 transitions. [2021-06-05 00:46:25,539 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:25,539 INFO L276 IsEmpty]: Start isEmpty. Operand 3263 states and 8491 transitions. [2021-06-05 00:46:25,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-05 00:46:25,542 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:25,542 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:25,542 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable367 [2021-06-05 00:46:25,542 INFO L430 AbstractCegarLoop]: === Iteration 369 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:46:25,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:25,542 INFO L82 PathProgramCache]: Analyzing trace with hash 187392421, now seen corresponding path program 15 times [2021-06-05 00:46:25,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:25,542 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255451192] [2021-06-05 00:46:25,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:26,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:26,459 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:26,459 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255451192] [2021-06-05 00:46:26,459 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255451192] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:26,459 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:26,459 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 00:46:26,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766260338] [2021-06-05 00:46:26,459 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 00:46:26,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:26,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 00:46:26,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:46:26,459 INFO L87 Difference]: Start difference. First operand 3263 states and 8491 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:27,598 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-06-05 00:46:27,981 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 72 [2021-06-05 00:46:28,181 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 76 [2021-06-05 00:46:28,414 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 80 [2021-06-05 00:46:28,721 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 84 [2021-06-05 00:46:29,181 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 86 [2021-06-05 00:46:29,674 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 89 [2021-06-05 00:46:31,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:31,176 INFO L93 Difference]: Finished difference Result 3607 states and 9235 transitions. [2021-06-05 00:46:31,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:46:31,177 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-05 00:46:31,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:31,179 INFO L225 Difference]: With dead ends: 3607 [2021-06-05 00:46:31,179 INFO L226 Difference]: Without dead ends: 3433 [2021-06-05 00:46:31,180 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 4049.3ms TimeCoverageRelationStatistics Valid=741, Invalid=3681, Unknown=0, NotChecked=0, Total=4422 [2021-06-05 00:46:31,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3433 states. [2021-06-05 00:46:31,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3433 to 3249. [2021-06-05 00:46:31,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3249 states, 3248 states have (on average 2.605911330049261) internal successors, (8464), 3248 states have internal predecessors, (8464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:31,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3249 states to 3249 states and 8464 transitions. [2021-06-05 00:46:31,209 INFO L78 Accepts]: Start accepts. Automaton has 3249 states and 8464 transitions. Word has length 120 [2021-06-05 00:46:31,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:31,209 INFO L482 AbstractCegarLoop]: Abstraction has 3249 states and 8464 transitions. [2021-06-05 00:46:31,209 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:31,209 INFO L276 IsEmpty]: Start isEmpty. Operand 3249 states and 8464 transitions. [2021-06-05 00:46:31,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-05 00:46:31,211 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:31,211 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:31,211 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable368 [2021-06-05 00:46:31,212 INFO L430 AbstractCegarLoop]: === Iteration 370 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:46:31,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:31,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1582854969, now seen corresponding path program 16 times [2021-06-05 00:46:31,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:31,212 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021477097] [2021-06-05 00:46:31,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:32,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:32,501 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:32,501 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021477097] [2021-06-05 00:46:32,501 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021477097] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:32,501 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:32,501 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 00:46:32,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051300738] [2021-06-05 00:46:32,501 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 00:46:32,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:32,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 00:46:32,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:46:32,502 INFO L87 Difference]: Start difference. First operand 3249 states and 8464 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:33,496 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-06-05 00:46:33,691 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 71 [2021-06-05 00:46:34,093 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 75 [2021-06-05 00:46:34,329 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 80 [2021-06-05 00:46:34,606 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 84 [2021-06-05 00:46:34,959 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-06-05 00:46:35,671 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 91 [2021-06-05 00:46:35,997 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 95 [2021-06-05 00:46:36,397 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 97 [2021-06-05 00:46:37,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:37,522 INFO L93 Difference]: Finished difference Result 3639 states and 9285 transitions. [2021-06-05 00:46:37,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 00:46:37,522 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-05 00:46:37,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:37,525 INFO L225 Difference]: With dead ends: 3639 [2021-06-05 00:46:37,525 INFO L226 Difference]: Without dead ends: 3452 [2021-06-05 00:46:37,525 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 4727.5ms TimeCoverageRelationStatistics Valid=724, Invalid=3436, Unknown=0, NotChecked=0, Total=4160 [2021-06-05 00:46:37,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3452 states. [2021-06-05 00:46:37,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3452 to 3258. [2021-06-05 00:46:37,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3258 states, 3257 states have (on average 2.6033159349094257) internal successors, (8479), 3257 states have internal predecessors, (8479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:37,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3258 states to 3258 states and 8479 transitions. [2021-06-05 00:46:37,556 INFO L78 Accepts]: Start accepts. Automaton has 3258 states and 8479 transitions. Word has length 120 [2021-06-05 00:46:37,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:37,556 INFO L482 AbstractCegarLoop]: Abstraction has 3258 states and 8479 transitions. [2021-06-05 00:46:37,556 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:37,556 INFO L276 IsEmpty]: Start isEmpty. Operand 3258 states and 8479 transitions. [2021-06-05 00:46:37,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-05 00:46:37,558 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:37,558 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:37,558 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable369 [2021-06-05 00:46:37,559 INFO L430 AbstractCegarLoop]: === Iteration 371 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:46:37,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:37,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1930991739, now seen corresponding path program 17 times [2021-06-05 00:46:37,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:37,559 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758953390] [2021-06-05 00:46:37,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:38,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:38,854 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:38,855 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758953390] [2021-06-05 00:46:38,855 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758953390] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:38,855 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:38,855 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 00:46:38,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922814962] [2021-06-05 00:46:38,855 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 00:46:38,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:38,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 00:46:38,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:46:38,855 INFO L87 Difference]: Start difference. First operand 3258 states and 8479 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:39,824 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-06-05 00:46:40,020 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 71 [2021-06-05 00:46:40,416 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 75 [2021-06-05 00:46:40,650 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 80 [2021-06-05 00:46:40,924 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 84 [2021-06-05 00:46:41,267 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-06-05 00:46:41,927 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 91 [2021-06-05 00:46:42,251 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 93 [2021-06-05 00:46:42,612 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 97 [2021-06-05 00:46:42,867 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-06-05 00:46:43,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:43,934 INFO L93 Difference]: Finished difference Result 3627 states and 9263 transitions. [2021-06-05 00:46:43,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:46:43,934 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-05 00:46:43,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:43,937 INFO L225 Difference]: With dead ends: 3627 [2021-06-05 00:46:43,937 INFO L226 Difference]: Without dead ends: 3447 [2021-06-05 00:46:43,937 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 698 ImplicationChecksByTransitivity, 4990.8ms TimeCoverageRelationStatistics Valid=762, Invalid=3660, Unknown=0, NotChecked=0, Total=4422 [2021-06-05 00:46:43,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3447 states. [2021-06-05 00:46:43,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3447 to 3261. [2021-06-05 00:46:43,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3261 states, 3260 states have (on average 2.602147239263804) internal successors, (8483), 3260 states have internal predecessors, (8483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:43,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3261 states to 3261 states and 8483 transitions. [2021-06-05 00:46:43,967 INFO L78 Accepts]: Start accepts. Automaton has 3261 states and 8483 transitions. Word has length 120 [2021-06-05 00:46:43,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:43,967 INFO L482 AbstractCegarLoop]: Abstraction has 3261 states and 8483 transitions. [2021-06-05 00:46:43,967 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:43,967 INFO L276 IsEmpty]: Start isEmpty. Operand 3261 states and 8483 transitions. [2021-06-05 00:46:43,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-05 00:46:43,970 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:43,970 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:43,970 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable370 [2021-06-05 00:46:43,970 INFO L430 AbstractCegarLoop]: === Iteration 372 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:46:43,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:43,970 INFO L82 PathProgramCache]: Analyzing trace with hash 116921113, now seen corresponding path program 18 times [2021-06-05 00:46:43,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:43,970 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767150654] [2021-06-05 00:46:43,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:44,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:44,858 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:44,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767150654] [2021-06-05 00:46:44,858 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767150654] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:44,858 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:44,859 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 00:46:44,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217711109] [2021-06-05 00:46:44,859 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 00:46:44,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:44,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 00:46:44,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:46:44,859 INFO L87 Difference]: Start difference. First operand 3261 states and 8483 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:45,952 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-06-05 00:46:46,318 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 72 [2021-06-05 00:46:46,518 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 76 [2021-06-05 00:46:46,747 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 80 [2021-06-05 00:46:47,038 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 84 [2021-06-05 00:46:47,645 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 87 [2021-06-05 00:46:47,914 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 89 [2021-06-05 00:46:49,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:49,246 INFO L93 Difference]: Finished difference Result 3638 states and 9288 transitions. [2021-06-05 00:46:49,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:46:49,247 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-05 00:46:49,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:49,249 INFO L225 Difference]: With dead ends: 3638 [2021-06-05 00:46:49,249 INFO L226 Difference]: Without dead ends: 3395 [2021-06-05 00:46:49,249 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 3928.9ms TimeCoverageRelationStatistics Valid=720, Invalid=3570, Unknown=0, NotChecked=0, Total=4290 [2021-06-05 00:46:49,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3395 states. [2021-06-05 00:46:49,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3395 to 3215. [2021-06-05 00:46:49,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3215 states, 3214 states have (on average 2.6008089607965155) internal successors, (8359), 3214 states have internal predecessors, (8359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:49,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 8359 transitions. [2021-06-05 00:46:49,278 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 8359 transitions. Word has length 120 [2021-06-05 00:46:49,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:49,279 INFO L482 AbstractCegarLoop]: Abstraction has 3215 states and 8359 transitions. [2021-06-05 00:46:49,279 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:49,279 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 8359 transitions. [2021-06-05 00:46:49,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-05 00:46:49,281 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:49,281 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:49,281 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable371 [2021-06-05 00:46:49,281 INFO L430 AbstractCegarLoop]: === Iteration 373 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:46:49,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:49,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1833061803, now seen corresponding path program 19 times [2021-06-05 00:46:49,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:49,282 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95312247] [2021-06-05 00:46:49,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:50,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:50,167 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:50,167 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95312247] [2021-06-05 00:46:50,167 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95312247] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:50,167 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:50,167 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 00:46:50,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639723522] [2021-06-05 00:46:50,168 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 00:46:50,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:50,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 00:46:50,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1103, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:46:50,168 INFO L87 Difference]: Start difference. First operand 3215 states and 8359 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:51,284 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 67 [2021-06-05 00:46:51,657 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 71 [2021-06-05 00:46:51,857 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-06-05 00:46:52,085 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 79 [2021-06-05 00:46:52,489 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 81 [2021-06-05 00:46:52,880 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 85 [2021-06-05 00:46:53,177 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 89 [2021-06-05 00:46:53,457 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:46:55,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:55,067 INFO L93 Difference]: Finished difference Result 4127 states and 10508 transitions. [2021-06-05 00:46:55,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-05 00:46:55,067 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-05 00:46:55,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:55,071 INFO L225 Difference]: With dead ends: 4127 [2021-06-05 00:46:55,071 INFO L226 Difference]: Without dead ends: 3861 [2021-06-05 00:46:55,071 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 812 ImplicationChecksByTransitivity, 4254.2ms TimeCoverageRelationStatistics Valid=816, Invalid=4014, Unknown=0, NotChecked=0, Total=4830 [2021-06-05 00:46:55,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3861 states. [2021-06-05 00:46:55,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3861 to 3467. [2021-06-05 00:46:55,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3467 states, 3466 states have (on average 2.591748413156376) internal successors, (8983), 3466 states have internal predecessors, (8983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:55,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3467 states to 3467 states and 8983 transitions. [2021-06-05 00:46:55,105 INFO L78 Accepts]: Start accepts. Automaton has 3467 states and 8983 transitions. Word has length 120 [2021-06-05 00:46:55,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:55,105 INFO L482 AbstractCegarLoop]: Abstraction has 3467 states and 8983 transitions. [2021-06-05 00:46:55,105 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:55,105 INFO L276 IsEmpty]: Start isEmpty. Operand 3467 states and 8983 transitions. [2021-06-05 00:46:55,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-05 00:46:55,107 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:55,107 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:55,107 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable372 [2021-06-05 00:46:55,108 INFO L430 AbstractCegarLoop]: === Iteration 374 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:46:55,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:55,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1963928467, now seen corresponding path program 20 times [2021-06-05 00:46:55,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:55,108 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577437956] [2021-06-05 00:46:55,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:55,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:56,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:56,375 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:56,375 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577437956] [2021-06-05 00:46:56,375 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577437956] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:56,375 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:56,375 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 00:46:56,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051343209] [2021-06-05 00:46:56,375 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 00:46:56,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:56,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 00:46:56,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:46:56,376 INFO L87 Difference]: Start difference. First operand 3467 states and 8983 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2021-06-05 00:46:57,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-05 00:46:57,070 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable373 [2021-06-05 00:46:57,070 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 00:46:57,072 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 00:46:57,073 WARN L196 ceAbstractionStarter]: Timeout [2021-06-05 00:46:57,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 12:46:57 BasicIcfg [2021-06-05 00:46:57,073 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 00:46:57,074 INFO L168 Benchmark]: Toolchain (without parser) took 735286.18 ms. Allocated memory was 360.7 MB in the beginning and 1.6 GB in the end (delta: 1.2 GB). Free memory was 320.7 MB in the beginning and 982.5 MB in the end (delta: -661.8 MB). Peak memory consumption was 562.2 MB. Max. memory is 16.0 GB. [2021-06-05 00:46:57,074 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 360.7 MB. Free memory was 340.6 MB in the beginning and 340.5 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 00:46:57,074 INFO L168 Benchmark]: CACSL2BoogieTranslator took 827.18 ms. Allocated memory is still 360.7 MB. Free memory was 320.6 MB in the beginning and 301.8 MB in the end (delta: 18.8 MB). Peak memory consumption was 77.0 MB. Max. memory is 16.0 GB. [2021-06-05 00:46:57,074 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.10 ms. Allocated memory is still 360.7 MB. Free memory was 301.8 MB in the beginning and 298.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-06-05 00:46:57,074 INFO L168 Benchmark]: Boogie Preprocessor took 22.77 ms. Allocated memory is still 360.7 MB. Free memory was 298.6 MB in the beginning and 296.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:46:57,074 INFO L168 Benchmark]: RCFGBuilder took 548.67 ms. Allocated memory is still 360.7 MB. Free memory was 296.5 MB in the beginning and 247.8 MB in the end (delta: 48.8 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. [2021-06-05 00:46:57,074 INFO L168 Benchmark]: TraceAbstraction took 733838.51 ms. Allocated memory was 360.7 MB in the beginning and 1.6 GB in the end (delta: 1.2 GB). Free memory was 247.3 MB in the beginning and 982.5 MB in the end (delta: -735.2 MB). Peak memory consumption was 488.5 MB. Max. memory is 16.0 GB. [2021-06-05 00:46:57,074 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 360.7 MB. Free memory was 340.6 MB in the beginning and 340.5 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 827.18 ms. Allocated memory is still 360.7 MB. Free memory was 320.6 MB in the beginning and 301.8 MB in the end (delta: 18.8 MB). Peak memory consumption was 77.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 44.10 ms. Allocated memory is still 360.7 MB. Free memory was 301.8 MB in the beginning and 298.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 22.77 ms. Allocated memory is still 360.7 MB. Free memory was 298.6 MB in the beginning and 296.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 548.67 ms. Allocated memory is still 360.7 MB. Free memory was 296.5 MB in the beginning and 247.8 MB in the end (delta: 48.8 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 733838.51 ms. Allocated memory was 360.7 MB in the beginning and 1.6 GB in the end (delta: 1.2 GB). Free memory was 247.3 MB in the beginning and 982.5 MB in the end (delta: -735.2 MB). Peak memory consumption was 488.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (3467states) and FLOYD_HOARE automaton (currently 12 states, 35 states before enhancement),while ReachableStatesComputation was computing reachable states (51 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (3467states) and FLOYD_HOARE automaton (currently 12 states, 35 states before enhancement),while ReachableStatesComputation was computing reachable states (51 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (3467states) and FLOYD_HOARE automaton (currently 12 states, 35 states before enhancement),while ReachableStatesComputation was computing reachable states (51 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1727]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (3467states) and FLOYD_HOARE automaton (currently 12 states, 35 states before enhancement),while ReachableStatesComputation was computing reachable states (51 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (3467states) and FLOYD_HOARE automaton (currently 12 states, 35 states before enhancement),while ReachableStatesComputation was computing reachable states (51 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1726]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (3467states) and FLOYD_HOARE automaton (currently 12 states, 35 states before enhancement),while ReachableStatesComputation was computing reachable states (51 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (3467states) and FLOYD_HOARE automaton (currently 12 states, 35 states before enhancement),while ReachableStatesComputation was computing reachable states (51 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (3467states) and FLOYD_HOARE automaton (currently 12 states, 35 states before enhancement),while ReachableStatesComputation was computing reachable states (51 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 178 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 733729.7ms, OverallIterations: 374, TraceHistogramMax: 1, EmptinessCheckTime: 1511.2ms, AutomataDifference: 566562.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 269.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 140477 SDtfs, 437941 SDslu, 816485 SDs, 0 SdLazy, 234299 SolverSat, 4549 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 109544.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14054 GetRequests, 1464 SyntacticMatches, 729 SemanticMatches, 11861 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34822 ImplicationChecksByTransitivity, 509967.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9357occurred in iteration=0, InterpolantAutomatonStates: 6761, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 35987.2ms AutomataMinimizationTime, 373 MinimizatonAttempts, 3392938 StatesRemovedByMinimization, 372 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 519.0ms SsaConstructionTime, 3525.1ms SatisfiabilityAnalysisTime, 122968.0ms InterpolantComputationTime, 42470 NumberOfCodeBlocks, 42470 NumberOfCodeBlocksAsserted, 374 NumberOfCheckSat, 42096 ConstructedInterpolants, 0 QuantifiedInterpolants, 307040 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 374 InterpolantComputations, 374 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown